Convert PNG to PDF
Turn screenshots and images into one tidy PDF, one image per page, with no quality loss. Your images are never uploaded.
Drop PNG images here or click to choose
PNG · JPG · WebP — built into a PDF on your device
How to make a PDF from PNG images
- Drop your PNGs into the box above, or click it to pick files.
- Check the numbered list — that is the page order. Add more files to append them, or use Remove to take one out.
- Press Create PDF. Every image becomes one page at its own pixel size, embedded without re-encoding — or set Photos per page to 2 or 4 first to put that many images on each A4 sheet.
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Download the result. A single image keeps its own name
(
receipt.pngbecomesreceipt.pdf); a batch is saved asimages.pdf.
What happens to each format
| Input | Handling | Quality |
|---|---|---|
| PNG | Embedded byte-for-byte, transparency kept | Identical to the original |
| JPG | Embedded byte-for-byte | Identical to the original |
| WebP | Repainted to PNG in your browser, then embedded | Lossless, but a larger page |
Why PNG makes a good PDF source
PNG is what your computer produces when you take a screenshot, and screenshots are what people are usually asked to send as a document: proof of a transfer, a page of a portal that has no export button, a chat thread for an insurance claim. PNG stores every pixel exactly, so small text stays readable instead of dissolving into the smudges JPEG leaves around sharp edges — and because the file is embedded untouched, the PDF is as sharp as the screenshot was.
shrink.run does the whole job inside the tab. Your browser reads each image, pdf-lib writes the document in memory, and the download link points at a file that only ever existed on your machine. No account, no watermark, no upload queue, and nothing left behind on a server for anyone to retrieve.
Frequently asked questions
Are my PNG files uploaded to a server?
No. The document is assembled in your browser with the open-source pdf-lib library and handed straight to your downloads folder. That matters for the things people usually screenshot — a bank statement, a chat thread, a signed form — because none of it is sent anywhere.
Are my PNGs re-compressed when they go into the PDF?
No. A PNG is embedded byte-for-byte, exactly as it sits on your disk, so text in a screenshot stays as crisp in the PDF as it was on screen. Nothing is re-encoded, so nothing is degraded.
What happens to transparency?
It is preserved. PDF understands PNG alpha, so a logo with a transparent background stays transparent inside the document. Most readers show white behind the page, so a transparent PNG normally looks as if it were on a white sheet — and it will print that way too.
How is the page order decided?
By the order the files appear in the numbered list, which is the order you added them. Add files in batches to control the sequence, or use the Remove link next to any image to drop it and add it again at the end.
What size is each page?
Each page is created at exactly the pixel dimensions of its image, so nothing is cropped, stretched or padded with margins. One PDF point equals one pixel, which means a 2560-pixel-wide screenshot produces a page that looks enormous in a page-size readout — printers scale it to the sheet anyway, so the printout comes out normal.
Can I mix PNGs with JPGs?
Yes. The tool accepts JPG, PNG and WebP together and keeps them in the order you added them. JPG and PNG go in untouched; WebP is repainted into PNG in your browser first, because PDF has no WebP support.
Why is my PDF so large?
Because PNG is lossless. A screenshot of a page of text stays small, but a PNG of a photograph can easily be 10 MB, and a PDF made from ten of them will be about 100 MB. If the file has to go by email, compress the images to JPEG first and build the PDF from those.
How many images can I add at once?
There is no fixed limit. The constraint is your device memory, since every image is held in the tab while the document is written. A few hundred screenshots is comfortable on a normal laptop; if a very large batch stalls, build it in two halves and merge the results.