Combine images into one PDF
Twenty photos of a document, one tidy PDF, in the order you choose.
- Nothing is uploaded
- Works offline after first visit
- Open source
- No watermark · limit is your device’s memory; phones hold less
Merge many photos, scans and screenshots into a single PDF in your browser. It is free, needs no account and adds no watermark, and your files are not uploaded: everything runs in your browser on your device. The size limit is your device’s memory, and phones hold less; give the page a short while after one visit to save itself for offline use, and then it works offline.
Done
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Open the network tab. Your files never appear in it.
Add files and run the tool to see every request this tab makes.
Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.
The usual reason for this job: a landlord, school, insurer or visa office asks for "one PDF" and you have a dozen phone photos of pages, receipts or ID cards, some of them screenshots, some HEIC straight from an iPhone. Uploading all of that to a converter means handing over exactly the documents you would least like copied. Here the PDF is assembled in your browser tab, and the images never leave it.
Formats can be mixed freely: a JPG goes in unchanged unless it needs rotating (then it is re-encoded at high quality), a PNG is kept lossless, and HEIC, WebP, GIF, BMP and AVIF are decoded and stored as high-quality JPG. Every image becomes one page. This page starts on A4 with a 10 mm margin, because a combined document is usually going to be printed or read like paper; switch to US Letter, or to "Fit to each image" for a PDF of screenshots.
Order matters most when combining. Drop everything at once, then use the arrows to put the pages in sequence before you convert. Phone photos are turned upright using their orientation tag, so sideways shots come out the right way round.
How it works
- Drop every image that belongs in the PDF, or tap to pick them. Formats can be mixed.
- Put the pages in order with the arrows. Adjust page size, orientation or margin if needed.
- Convert. One PDF with all the images downloads from your browser.
In your browser, not on a server
A JPG is embedded directly into the PDF by pdf-lib, unchanged, unless it needs rotating by its EXIF orientation (as sideways phone photos often do), in which case it is decoded and re-encoded at high quality. A PNG is embedded losslessly. Other formats are decoded by your browser (HEIC via libheif, TIFF via UTIF.js, one page per TIFF page) and embedded as high-quality JPG. Page size, orientation and margins are applied while laying out each page in memory.
Compared with upload-based tools: Uploading a folder of receipts or ID scans to make one PDF is exactly the kind of thing that should not need a server. The PDF is assembled on your device in the time it takes to pick the files.
Verify it yourself. Give the page a short while after one visit to save itself for offline use, then turn off Wi-Fi or switch to airplane mode and run the tool again. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.
Questions
How many images can I put in one PDF?
There is no set limit. The practical ceiling is your device’s memory: a hundred phone photos is fine on a laptop, and most phones handle a few dozen comfortably.
How do I keep the PDF small enough to email?
Photos from a modern phone are 3 to 5 MB each, and they go into the PDF at that size. Shrink them first with Compress image, or run the finished PDF through Compress PDF.
I already have PDFs as well as images. Can I combine everything?
Convert the images here first, then join that PDF with the others on Merge PDF. Both steps run in your browser.
Is the file uploaded anywhere?
No. There is no server in this process. The page is a static file and the work is done by code running inside your browser tab. Give the page a short while after one visit to save itself for offline use; then you can turn off Wi-Fi and it still works.
More PDF tools
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Turn photos, scans and screenshots into a single PDF. One image per page, in the order you choose.
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Open ZIP, RAR and 7z
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Guides
- How to convert a photo to PDFEvery device can do this, in different ways and different places in the menus. Here is how on each, plus combining several photos into one file.
- A free Convertio alternative with no file size capConvertio's free plan caps both file size and how many conversions you get per day. Here is an alternative with no such ceiling.
- A free PDF Candy alternative that doesn't upload your filesPDF Candy's free plan works, with page, hourly and batch limits, and your file goes to its servers first. Here is what changes when it never leaves your device.
- Is Convertio safe?Convertio is a well-known converter with a published deletion policy. For private files, the safer choice is a converter that never receives them.