Convert PNG images to PDF locally
Convert PNG images (screenshots, scans, graphics) into a single PDF, processed entirely on your device.
For the best results: Screenshots convert especially well, each PNG becomes a page at its exact pixel size. Transparency is preserved, and pages display over white in most viewers, so rounded corners and cut-outs still look clean.
Advanced settingsoptional, defaults work well
Processed entirely in your browser, your files are never uploaded to any server, and nothing is stored.
What is PNG to PDF?
PNG to PDF is a free PDF tool that converts PNG images into a single PDF with transparency flattened properly, processed on your device. Your pictures are read and placed into the PDF right on your device; nothing is sent to a server at any point. The finished document downloads straight away, with no watermark, no size tier, and no account asked for.
- ✦Runs entirely in your browser. Nothing you enter is ever uploaded
- ✦No account, no sign-up, and no data leaves your device
- ✦Works offline once the page has loaded
See it in action
A designer archives interface screenshots as one shareable PDF.
What you drop in
Six PNG screenshots chosen together
What you get
images.pdf, six pages, each page matching its screenshot's dimensions exactly, from a tiny icon test up to a 9000-pixel-wide banner in the stress test.
Tip: PNG transparency is kept in the PDF, so screenshots with rounded corners or cut-outs sit cleanly on white. For photographs, JPG input makes a noticeably smaller PDF than PNG input.
Use cases
What people use it for
Convert a run of app screenshots into one PDF for a bug report or handover.
Turn exported slide PNGs into a single deck PDF that anyone can open.
Compile transparent logo proofs into a client sign-off PDF with backgrounds flattened cleanly.
Who uses PNG to PDF?
UX and product designers
Bundle mockup exports into review PDFs while unreleased work stays safely on their own machine.
Software testers
Package annotated screenshots into a single reproducible bug report the whole team can open.
Course and content creators
Turn slide and diagram exports into polished PDF handouts without opening a design suite.
How it works
- 1Choose your PDF or images. They load into your browser only.
- 2Your device does the edit: merge, split, rotate, or convert, with no upload.
- 3The result downloads straight back to you; nothing is kept.
Tips for the best results
- Crop screenshots before converting, each page is exactly the size of its image.
- Keep widths consistent across a batch so the pages feel uniform when scrolling.
- Transparent areas show the white page behind them; add a colored background to the PNG first if you want one.
- Photo-heavy PNGs make large PDFs, convert photos to JPG first when size matters.
- Once the page has loaded, the converter keeps working with no connection at all.
FAQ
Frequently asked questions
What happens to PNG transparency in the PDF?
PNG images carry an alpha channel that marks pixels as see-through, and the conversion keeps that channel intact inside the PDF. Most viewers display pages on white, so transparent corners and cut-outs simply show the clean page behind them, not the black or gray blocks careless converters produce. If you want a colored backdrop, add one to the PNG before converting.
Do the images pass through a server at any point?
At no point. Decoding, flattening, and page assembly all take place inside the browser tab, and the finished PDF is written directly to your device. Design mockups under NDA and unreleased screenshots are exactly the kind of material this matters for. They are never transmitted, cached, or seen elsewhere.
Is any quality lost converting PNG to PDF?
PNG is a lossless format, and the conversion honors that. Every pixel is carried into the PDF at full resolution, with each image placed on its own page at natural size. Fine UI text and one-pixel lines in screenshots survive intact, which is precisely why PNG suits that content.
Should I use PNG or JPG when making a PDF?
Match the format to the content. PNG is ideal for screenshots, diagrams, and text-heavy images because it compresses without discarding detail. JPG suits photographs, where its lossy compression is invisible but dramatically smaller. Converting to PDF changes neither, a PDF simply carries whichever image data you give it.
Are there limits, watermarks, or sign-ups?
No caps and no branding. With the processing running on your own hardware, there is nothing for anyone to meter or upsell, convert one screenshot or two hundred, and the output carries no stamp. Device memory is the only real constraint, and PNG batches rarely test it.
how do i turn screenshots into a pdf
Select the screenshots in the order you want, and each becomes a page in a single downloadable PDF at its original resolution. Because the file is assembled locally in your browser, screenshots of dashboards, chats, or account pages stay entirely on your own computer throughout the process.
how do i combine multiple png files into one pdf
Select all the PNGs together and they become consecutive pages in one document, following your selection order. Mixed sizes are fine. Every image keeps its own dimensions on its own page. It is a tidy way to turn a screenshot series into something a client can simply scroll.
what is a good resolution for images in a pdf
For on-screen reading, native resolution is fine, the PDF keeps every pixel your PNG has. For printing, aim for roughly 300 pixels per inch of printed size, the long-standing print benchmark. Screenshots are usually read on screens anyway, where they display exactly as captured.
Are there any usage limits?
None. Everything is generated locally in your browser, so there is no server cost, no metering, and no daily cap, use it as many times as you like, completely free.
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