PNG to PDF Converter
Convert screenshots, graphics, and diagrams from PNG to PDF without anything leaving your computer.
🔒 Your files never leave your device
Need the opposite? PDF to PNG
This PNG to PDF converter is built for the files PNG does best: screenshots, charts, diagrams, and graphics with sharp edges and text. Because PNG is a lossless format, your pixels transfer into the PDF exactly as they are, and the whole conversion runs locally in your browser with no upload step.
It is the quickest way to hand in a set of screenshots as one tidy document. Bug reports, design reviews, step-by-step guides, and evidence for a support ticket all read better as a single PDF than as ten separate image files.
Add one PNG or many, arrange the order, and convert. No sign-up, no watermark, and no server ever sees your files.
How to convert PNG to PDF
- Drop your PNG files onto the upload area or click to browse.
- Drag thumbnails to arrange the page order.
- Adjust page settings if you need a different orientation or fit.
- Click Convert. The PDF is assembled locally in your browser.
- Download the result to your device.
A note on transparency
PNG supports transparent backgrounds, but PDF pages are not transparent. Transparent areas in your image are placed over the page background, so a logo with a transparent backdrop will typically sit on white. If the final look matters, flatten your PNG onto the background colour you want before converting.
This only affects images that actually use transparency, like logos, cut-out graphics, and some diagrams. Ordinary screenshots and photos saved as PNG have a solid background already, so they convert with no surprises at all.
Why screenshots belong in PDFs
Screenshots sent as loose files arrive out of order, get compressed by chat apps, and are easy to lose. Wrapping them into one PDF keeps the sequence intact, preserves full resolution, and gives the recipient a single file to open, print, or archive.
Since PNG keeps text razor sharp, the PDF pages remain perfectly readable even when the viewer zooms in, which is exactly what you want for UI captures and error messages.
How the converter builds your PDF
The tool reads each PNG straight from your device and uses the pdf-lib library to place it on its own page inside a new PDF, assembled in your browser's memory. When you click Convert the finished document is handed back to you as a download with no server involved.
Because PNG is lossless, the image data is embedded rather than re-compressed, so the page is a faithful copy of your original file. That is why fine lines, screenshots, and text stay exactly as crisp in the PDF as they were in the source.
Your files stay on your device
Every part of the PNG to PDF conversion happens locally, so your screenshots and graphics are never uploaded, cached on a server, or seen by anyone else. That is important when the captures show internal dashboards, private chats, account details, or unreleased design work.
Nothing is kept once you leave the page. If you want to confirm it, turn off your connection before converting, the tool still assembles the PDF, which shows there is no hidden upload.
Tips for crisp screenshots and diagrams
Capture at the resolution you want to keep, since the PDF preserves whatever you feed it but cannot invent detail that was not in the original. A full-resolution screenshot makes a sharp page; a tiny thumbnail stretched to fill a sheet will look soft.
Match the page orientation to your images: portrait for tall mobile captures, landscape for wide dashboards or spreadsheets. Reorder the thumbnails so a step-by-step guide reads top to bottom in the right sequence before you convert.
PNG or JPG as your source
Use this PNG to PDF tool when your images are screenshots, charts, diagrams, or anything with sharp text and solid colour, because PNG keeps those edges perfectly clean. The resulting pages stay readable at any zoom level.
If your source files are photographs, they are usually JPGs and are better handled by our JPG to PDF tool, which keeps those files smaller without visible loss. Both tools work the same private, in-browser way, so pick the one that matches the images you actually have.
Common problems and how to fix them
If a logo or icon ends up on a white block you did not want, the culprit is PNG transparency meeting an opaque PDF page. Flatten the image onto your preferred background colour first, then convert, and it will render the way you expect.
Large numbers of high-resolution PNGs assembled at once can strain an older device's memory, because the whole document is built in the browser. If it feels slow, convert in smaller groups and combine the PDFs afterwards with our Merge PDF tool.
Frequently asked questions
Is the PNG to PDF converter free to use?
Yes. It is free with no watermark, no conversion cap, and no registration. Ads on the page keep the tool running.
Do my PNG files get uploaded?
No. The PDF is built entirely inside your browser. Your screenshots and graphics never leave your device, which is ideal for internal or confidential material.
Will my images lose quality?
No. PNG is lossless and your image data is embedded into the PDF as-is, so lines, text, and edges stay exactly as sharp as the original files.
Can I merge several PNGs into one PDF?
Yes. Add all your images, drag them into the order you want, and convert. Each PNG becomes one page of the final document.
What happens to transparent backgrounds?
PDF pages are opaque, so transparent regions are rendered over the page background, usually white. Flatten the image first if you need a specific background colour.
Does this work on mobile devices?
Yes. It works in any modern browser on iPhone, Android, and tablets, so you can convert screenshots right where you took them.