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Merge dozens of images into one PDF, then drag to reorder, duplicate, rotate or remove any page.
One image per page, grids, contact sheets, 2-up galleries or framed photo-album pages.
A4, A3, A5, Letter, Legal, Tabloid, Executive or custom sizes with margins, orientation and alignment.
Auto-crop to the page edges, deskew, boost contrast and export crisp grayscale or black & white scans.
Add an invisible, selectable text layer in your browser so the PDF is fully searchable and copyable.
Encrypt with the PDF Standard Security handler and restrict printing, copying and editing.
Text or logo watermarks, headers, footers, page numbers, dates and a custom cover page.
AI document detection picks quality, DPI and format so files stay small without looking soft.
Every image is converted in your browser. Nothing is uploaded, stored or sent to a server.
Drag and drop your photos or scans into the drop zone, click to browse your device, or paste an image from the clipboard. You can add a single picture or hundreds at once, and JPG, PNG, WebP, AVIF, BMP, GIF, SVG, HEIC and TIFF files are all decoded right in your browser. Nothing is ever uploaded to a server, so even sensitive documents stay private on your machine.
Drag thumbnails to reorder them, rotate any image, duplicate a page, or delete the ones you do not need. Each picture becomes one page by default, but you can also combine several images per page using grid, contact sheet or photo album layouts. A live preview shows exactly how the finished PDF will look as you make changes.
Pick a page size such as A4, A3, A5, Letter, Legal, Tabloid or Executive, or let the page auto-fit each image. Set portrait or landscape orientation, adjust the margins, and choose a fit mode that controls how the image sits inside the page: fit, fill, stretch, original or crop. These settings give you full control over the printed result.
Reduce file size with smart compression, resize to a target DPI of 150, 300 or 600, convert to grayscale or black and white, strip metadata, and add a watermark, header or footer with page numbers, the date or a logo. If you need security, set an open password and restrict printing, copying or editing. You can also run optional in-browser OCR to make the text searchable.
Click convert and the PDF is built instantly in your browser using a client-side PDF engine. Download the finished document in a single click, or process many image sets at once and download everything as a ZIP archive. Because the work happens locally, conversion is fast, free, and works even when you are offline.
Converting an image to a PDF means wrapping the raw pixels of a photo or scan inside the Portable Document Format container so the picture becomes a fixed, printable page. When you add a JPG, PNG or other image, the tool first decodes it into a bitmap using the browser Canvas API, reads its width, height and color data, and then writes that bitmap into a PDF page object along with instructions for where it should sit and how large it should appear. The result is a self-contained document that looks identical on every device, every operating system and every PDF reader, because the layout is baked in rather than reflowed.
The geometry of the page is the heart of the process. A PDF page is measured in points, where one point equals one seventy-second of an inch, so an A4 page is 595 by 842 points and a US Letter page is 612 by 792 points. The tool calculates the printable area by subtracting your chosen margins, then scales each image to fit that box according to the fit mode you select. Fit preserves the aspect ratio inside the margins, fill covers the whole area and may crop edges, stretch distorts the image to fill exactly, original keeps the native pixel size, and crop trims the picture to the page proportions. This math runs for every page so the spacing stays consistent.
Because everything happens on the client, the image never leaves your computer. The browser holds the decoded pixels in memory, the PDF library assembles the page tree, content streams and cross-reference table, and a binary PDF blob is generated locally. That blob is then offered to you as a download. There is no round trip to a cloud service, no queue and no upload progress bar, which is why the conversion feels instant and why your private documents remain private. The same approach lets the tool work offline once the page has loaded.
When you combine several images into one PDF, the tool appends one page per image in the order shown in the thumbnail strip, or it groups multiple pictures onto a single page when you choose a grid or album layout. Each image can carry its own rotation, and duplicated pages reuse the same embedded image to keep the file small. Optional steps such as compression, grayscale conversion, watermarking and OCR are applied as the document is built, so the final PDF reflects every choice you made without needing a second pass or an external editor.
It helps to picture the assembly as a pipeline. First the raw bytes of each file are read and decoded into pixels; next any per-image edits such as rotation, sharpening or grayscale are applied to that bitmap; then the image is scaled and positioned inside its page according to the size, margin and fit settings; finally headers, footers, page numbers and watermarks are drawn on top, and the page is written into the growing PDF. Repeating this for every image and then serializing the whole document produces the file you download, and because each stage is independent you can tweak any setting and rebuild without starting over.
JPG and PDF solve different problems, and knowing the difference helps you pick the right one. A JPG is a single raster image: a grid of pixels compressed with a lossy algorithm that is excellent for photographs and small file sizes. A PDF, by contrast, is a document container that can hold one or many pages, mixing images, vector graphics, text, fonts, links and form fields. When you only need to share one picture for someone to look at, a JPG is fine. When you need a multi-page, print-ready, tamper-resistant document, a PDF is almost always the better choice.
The biggest practical advantage of PDF is page structure. You cannot put ten JPGs into a single JPG, but you can place ten images into one tidy PDF that opens as a flip-through document with consistent page sizes and margins. This matters for receipts, contracts, ID copies, portfolios, homework and scanned paperwork, where the recipient expects one file rather than a folder of loose images. PDF also fixes the layout, so the page that you build is exactly the page the reader sees, regardless of their screen size, browser or app.
PDF adds capabilities that a bare JPG simply does not have. You can protect a PDF with a password and restrict printing, copying or editing, you can add a watermark across every page, you can include a header and footer with automatic page numbers and a date, and you can make the document searchable with OCR. You can also archive it as PDF/A for long-term preservation. A JPG cannot carry any of that. So while JPG wins on raw photo compression, PDF wins whenever the file needs to behave like a document.
There is a quality trade-off worth understanding. Embedding a JPG inside a PDF does not magically improve it, and re-saving a JPG repeatedly degrades it because each save re-applies lossy compression. The smart workflow is to convert your best-quality source images to PDF once, choosing a sensible DPI and compression level, and then keep that PDF as the master. For pure photo storage where you may edit later, keep the original JPG, PNG or RAW file. For sharing, printing, signing and archiving, convert to PDF. Many people keep both: the originals for editing and a PDF for distribution.
The Portable Document Format earned its place as the universal standard for finished documents because it is consistent everywhere. A PDF you create on a phone opens the same way on a laptop, a library computer or a printer at a copy shop, with the same fonts, the same spacing and the same page breaks. This reliability is why governments, banks, schools, courts and businesses all accept and require PDFs. When you convert your images to PDF you inherit that universality, so you never have to worry that a recipient cannot open or correctly view your file.
PDFs are compact and self-contained. A well-built PDF embeds everything it needs, so there are no missing fonts and no broken image links, and smart compression keeps the file size reasonable even for a document with many photos. That makes PDFs easy to email, upload to portals that only accept a single file, and store in document management systems. Because the format supports both lossless and lossy image compression, you can tune the balance between crisp quality and a small footprint depending on whether the document is destined for screen viewing or professional printing.
Security and integrity are built into the format. You can lock a PDF with an open password so only the right people can read it, and you can apply permission restrictions that discourage printing, copying text or editing the content. A watermark stamped across every page signals ownership or a draft status, and once a document is distributed as a flattened PDF it is harder to alter casually than a loose image. For records that must survive for years, the PDF/A profile defines an archival subset designed to remain readable far into the future.
PDF is also accessible and searchable when built well. Adding OCR turns a scanned image into a document whose text can be selected, copied and searched, which is invaluable for finding a single line inside a long contract or a stack of receipts. Tagged structure, bookmarks and page numbers make long documents easy to navigate. All of these benefits combine into one practical truth: a PDF behaves like a real document, while a folder of images is just a folder of images. Converting to PDF is how you turn pictures into something professional, portable and durable.
Turning a set of photos into a single PDF is one of the most common reasons people reach for this tool, and the results look far more polished than a zip of loose images. Whether you are building a portfolio, packaging holiday pictures for relatives, submitting evidence photos, or assembling a product catalog, a PDF presents your images as a clean, paginated document. You simply add the photos, drag them into the order you want, and choose how they should be laid out. The tool handles the scaling and spacing so every page looks deliberate rather than thrown together.
Layout is where photo PDFs shine. You can place one photo per page for maximum impact, use a grid to fit several thumbnails on a sheet, or pick a contact sheet layout that arranges many small previews with optional captions, which is perfect for proofing a shoot. Photo album and gallery presets add tasteful margins and consistent sizing so a mixed batch of portrait and landscape pictures still reads as a coherent set. Because each image keeps its aspect ratio in fit mode, your photos are never squashed unless you deliberately choose stretch.
Quality settings let you decide between a crisp keepsake and a lightweight share. For a photo book you might choose a 300 DPI target and high quality so prints stay sharp, while for emailing you might enable compression and a lower DPI to shrink the file. You can also convert color photos to grayscale or black and white for a vintage look or a smaller size, and sharpen slightly to counter softness from scaling. The live preview shows the effect of each choice before you commit, so there is no guesswork about how the final pages will appear.
Finishing touches make a photo PDF feel professional. Add a header or footer with a title, the date or automatic page numbers, stamp a subtle watermark with your name or studio for protection, and strip camera metadata if you would rather not share where and when a picture was taken. For large jobs, process several albums at once and download them together as a ZIP. Everything happens in your browser, so even personal or client photos never leave your device, which is reassuring when the images are private or under a usage agreement.
A phone camera plus this tool turns into a capable document scanner, no app store download required. Scan mode is designed for paperwork: receipts, invoices, forms, ID cards, handwritten notes, contracts and whiteboards. When you enable it, the tool can detect the edges of the page within the photo, deskew a picture that was taken at a slight angle, boost contrast so faint print becomes legible, and convert the result to clean black and white that mimics a flatbed scanner. The outcome is a tidy, high-contrast page rather than a casual snapshot with shadows and clutter.
Edge detection and deskew are the features that make camera scans look professional. Edge detection finds the rectangle of the document inside the frame so the surrounding desk or background can be trimmed away, while deskew rotates the page so the text runs horizontally. Together they correct the perspective and tilt that creep in when you hold a phone over a sheet of paper. Contrast and threshold controls then push the background toward pure white and the ink toward pure black, which both improves readability and dramatically reduces file size compared with a full color photo.
Black and white scanning is not only about looks. A bi-level or grayscale scan compresses far smaller than a color image because there is less data per pixel, so a stack of pages stays light enough to email or upload to a portal. For multi-page documents you simply photograph each sheet, drop them all in, reorder the thumbnails to match the original sequence, and convert them into one continuous PDF. This is exactly how dedicated scanner apps work, except here it runs in your browser with no account and no images sent to a third-party server.
For the most useful scans, combine scan mode with optional OCR. Edge detection and high contrast give the text recognition engine the clean input it needs, and the OCR pass then adds an invisible searchable text layer behind the image so you can later select and search the words. Keep in mind that camera scans depend on good lighting and a steady hand: even illumination, a contrasting background and a flat page all improve the result. With those basics in place, you can digitize a drawer of paper into searchable PDFs without ever leaving your browser.
A PDF built from photos can grow large quickly, so understanding compression helps you keep files within email and upload limits without ruining quality. The single biggest factor is how the images inside the PDF are encoded. Photographs compress best with JPEG-style lossy compression, which throws away detail the eye barely notices in exchange for a much smaller size, while line art, text scans and screenshots stay sharper with lossless or near-lossless encoding. This tool lets you choose a quality level, so you can trade a little fidelity for a lot of saved space whenever the document is destined for the screen rather than the press.
Resolution is the second lever, and it is often the most powerful. An image captured at a very high megapixel count carries far more pixels than a printed or on-screen page can use, so downscaling to a sensible DPI removes redundant data. A target of 150 DPI is plenty for on-screen reading and email, 300 DPI is the standard for crisp printing, and 600 DPI is reserved for fine detail or archival capture. Lowering the DPI on an oversized image can shrink a PDF dramatically with no visible loss, because you are simply discarding pixels that would never have been displayed anyway.
Color is the third lever. Converting a color document to grayscale removes two of the three color channels, and converting to bi-level black and white reduces each pixel to a single bit, both of which slash file size on text-heavy scans. Stripping embedded metadata, thumbnails and duplicate image data also trims a little weight. For documents that repeat the same image, such as a duplicated page or a tiled watermark, the tool can reference one embedded copy rather than storing the picture twice, which keeps the file lean even as the page count grows.
The art of compression is matching the settings to the purpose. For a contract you will sign and store, favor clarity with a 300 DPI grayscale scan and moderate compression. For a quick receipt to email an accountant, push compression higher and DPI lower because legibility, not beauty, is the goal. For a print portfolio, keep quality high and accept a larger file. The live size estimate updates as you adjust these controls, so you can find the sweet spot before you download. Because the work happens in your browser, you can experiment freely without uploading anything or waiting in a queue.
PDF/A is a specialized version of the PDF standard created for long-term archiving, and it answers a simple question: will this document still open and look correct decades from now? Regular PDFs can rely on external fonts, encrypted content or features that future software might not support, which risks a file that no longer renders faithfully. PDF/A removes those risks by requiring everything the document needs to be embedded inside it and by forbidding features that hinder preservation. The result is a self-contained, future-proof file that institutions trust for records that must outlive the software that made them.
The core rules of PDF/A are straightforward to understand even if the specification is detailed. All fonts must be embedded so text always renders the same way. Color must be described in a device-independent way, typically by including an ICC color profile, so the document looks consistent on any display or printer. Encryption is not allowed, because a future reader should never be locked out of an archival record. JavaScript, audio, video and other dynamic or external dependencies are prohibited. Metadata must follow a standard format so catalogs and archives can index the file reliably. These constraints are what give PDF/A its longevity.
For an image-to-PDF tool, honesty about PDF/A matters. A client-side converter can follow many of the archival principles: it can embed images directly so there are no external links, avoid encryption, embed any fonts used in headers or footers, and write clean metadata. What a browser-based tool cannot always guarantee is full, validated PDF/A conformance, because strict compliance requires embedding tagged color profiles, passing a formal validator and meeting every clause of the standard. So treat the PDF/A option as archival-friendly output rather than a certified conformance stamp, and validate with a dedicated tool if a regulator demands proof.
In practice, you get most of the archival benefit by following good habits regardless of the formal profile. Embed your images at a sufficient resolution so the content stays legible, avoid password protection on copies you intend to keep forever, write meaningful title and author metadata, and keep a master copy in a safe location. If your obligation is a casual personal archive, these steps are more than enough. If you must satisfy a legal or governmental retention rule that names PDF/A-1, PDF/A-2 or PDF/A-3 explicitly, run the file through a certified archival converter and validator to obtain a guaranteed conformant document.
Optical Character Recognition, or OCR, is the technology that reads the text inside a picture and turns it into machine-readable characters. Without OCR, a scanned page is just an image of words: you can see the text but you cannot select, copy or search it. With OCR, the converter analyzes the shapes in the image, recognizes letters and numbers, and writes an invisible text layer behind the picture in the PDF. The page still looks exactly like the original scan, but now you can highlight a sentence, copy a paragraph or use find to jump straight to a keyword inside a long document.
This tool runs OCR entirely in your browser using an in-browser recognition engine based on Tesseract, which means your documents never leave your device even when their text is being read. The trade-off for that privacy is speed: in-browser OCR is slower than a powerful cloud service, especially on long documents or older phones, because the recognition runs on your own processor. For that reason OCR is optional and off by default. You enable it only when you actually need searchable text, and you can run it on a single important page rather than an entire batch when you want to save time.
Accuracy depends heavily on the quality of the input. OCR thrives on clean, high-contrast, well-lit, straight pages with clear printed type, which is exactly why scan mode pairs so well with it: edge detection, deskew and contrast boosting hand the engine a tidy image to work from. Recognition is strongest on standard printed fonts and weaker on handwriting, stylized type, low-resolution captures or pages with heavy background patterns. Capturing at a higher DPI, ensuring even lighting and flattening the page all push accuracy higher, so a little care during scanning pays off in cleaner searchable text.
A searchable PDF unlocks real productivity. You can archive years of receipts and later find every charge from a single vendor, store contracts and locate a specific clause in seconds, or digitize study notes and search them like a textbook. Because the visible image is untouched, the document still prints and looks like the original while gaining a hidden, fully searchable text layer. If you only need the words as plain text rather than a PDF, many OCR workflows can also export the recognized characters separately, but for most people the searchable PDF is the ideal blend of faithful appearance and practical searchability.
Beyond a single quick conversion, image-to-PDF sits at the center of many professional routines, and a few repeatable patterns cover most needs. Accountants and small businesses build expense PDFs by photographing receipts throughout the month, dropping them in, and exporting one searchable file per period. Real estate agents and inspectors assemble property reports by combining site photos with a header, footer and page numbers. Photographers deliver client proofs as a watermarked contact sheet. Teachers and students turn worksheet photos into tidy submissions. Each of these is just a thoughtful combination of layout, ordering, branding and protection applied consistently.
Branding and consistency separate a professional document from an amateur one. Adding a header with a company or project name, a footer with the date and automatic page numbers, and a discreet logo watermark makes every page recognizably yours. Choosing a single page size and orientation across the batch keeps the document uniform even when the source photos vary wildly in shape. Saving your preferred settings so they apply to every file means you do not have to rebuild the same configuration each time, which is what makes a workflow fast enough to use every day rather than only once.
Volume work calls for batch processing. When you have dozens of separate documents to produce, you can convert them together and download the results as a ZIP archive instead of saving each file by hand. This is ideal for tasks like turning a folder of scanned invoices into individual searchable PDFs, or producing a separate album PDF for each client shoot. Because the processing happens locally, there is no per-file upload wait and no account limit on how many you convert, so a large batch finishes as fast as your computer can build the documents.
Security belongs in any professional workflow that touches sensitive material. Set an open password so only intended recipients can view a confidential report, and add permission restrictions to discourage casual printing, copying or editing. Strip camera metadata from photos that might reveal a location or device before sending them to a client. For records you must keep, choose archival-friendly settings and store a master copy safely. The combination of consistent branding, batch efficiency and sensible protection turns a simple converter into a dependable part of how real work gets shipped, all without uploading a single private file.
The best results start with the best source images, so capture or export at the highest reasonable quality before converting. A sharp, well-lit, correctly exposed photo gives the converter clean pixels to work with, and you can always compress down afterward, whereas you can never recover detail that was never captured. For documents, shoot straight on with even lighting and a contrasting background so edge detection and OCR have an easy job. For artwork and photos, start from the original file rather than a screenshot or a re-saved copy to avoid stacking lossy compression that softens the image.
Choose page settings deliberately rather than accepting defaults blindly. Match the page size to the destination: A4 or Letter for documents that may be printed, auto-fit when you want each page to hug its image, and a larger size like A3 or Tabloid for detailed plans or panoramas. Pick orientation to suit the dominant shape of your images, set margins generously enough that nothing important sits at the very edge where printers may clip it, and select a fit mode that respects your content. Fit is the safe default because it never distorts or crops, while fill and crop are for when you want edge-to-edge coverage.
Optimize with the destination in mind so you neither bloat nor degrade the file. For screen and email, enable compression and target 150 DPI; for printing, keep quality high at 300 DPI; for fine archival capture, use 600 DPI. Convert text-heavy scans to grayscale or black and white to shrink them, but keep photos in color. Only add OCR when you genuinely need searchable text, since it slows the process, and run it on the pages that matter rather than every page of a large batch. Always glance at the live preview and the size estimate before downloading to confirm the trade-off is the one you want.
Finally, build good habits around organization and privacy. Name your PDFs clearly with a date and subject so they are easy to find later, keep the original images as masters in case you need to regenerate at different settings, and store important documents in more than one place. Take advantage of the fact that everything runs in your browser: process sensitive material with confidence that it is never uploaded, strip metadata before sharing anything publicly, and use passwords for genuinely confidential files. A little discipline at conversion time saves a lot of searching, re-scanning and worrying later on.
Go the other way and export every page of a PDF as a high-quality JPG, PNG or WebP image, right in your browser.
Trim, straighten and frame your photos with ratio presets and smart crop before turning them into clean PDF pages.
Scale images to exact pixel dimensions or a target size to control resolution and shrink files ahead of conversion.
Reduce JPG, PNG and WebP file sizes with adjustable quality so your finished PDF stays light and email-friendly.
Stamp text or a logo watermark across your images for branding and protection before you build the document.
Strip GPS location, camera model and capture data from photos to protect your privacy before sharing or converting.
Cut out the background of product shots and portraits to create clean, professional pages in your PDF.
Convert many images between JPG, PNG, WebP and AVIF at once to prepare a consistent set for your PDF.
Turn DOCX, TXT, Markdown, HTML and spreadsheet files into polished PDFs entirely in your browser.
Convert iPhone HEIC and HEIF photos to universal JPG so they open and convert anywhere with ease.