PNG to PDF Converter
Screenshots in, one PDF out. Runs on your device.
Your files stay in this tab. There is no upload endpoint on this site.
Screenshots are the usual reason
PNG is what both macOS and Windows produce when you capture the screen, so a PNG-to-PDF conversion is nearly always a pile of screenshots that has to be submitted as one document: a bug report, an expense trail, a chat history for a dispute, a step-by-step guide for a colleague.
Drop them all at once and they become a single PDF, one screenshot per page, in list order.
Transparency is flattened onto white
This is the one behaviour worth knowing before you convert. PNG supports transparency; a PDF page does not have an equivalent notion of "nothing here". Transparent areas are therefore composited onto white, which is what you want almost every time — a screenshot with rounded transparent corners comes out looking like it was printed on paper.
It is only a problem if you were relying on transparency for a later step, such as placing the image over a coloured background. In that case keep the PNG and place it directly.
Page size follows the image
Each page is built at the pixel dimensions of its image, so a tall screenshot produces a tall page and a wide one produces a wide page. Nothing is cropped and no white margin is added. Mixed sizes in one batch are fine — each page takes its own dimensions.
Expect the file to get larger
Images are re-encoded as JPEG at quality 92 when placed on the page. For a photograph that shrinks the file. For a screenshot of flat UI and text — exactly what PNG is best at — it usually does not, and the PDF can end up larger than the sum of the PNGs. That is the nature of putting text-like content through a photographic codec.
If size matters more than absolute fidelity, run the PNGs through compress image first. If fidelity matters more, keep the count of pages down rather than lowering quality.
Nothing is uploaded
Decoding and PDF assembly both happen in this tab. Screenshots are a category of file that tends to contain more than intended — an open inbox behind the window, a customer name in a sidebar, a token in a URL bar. None of it leaves your device here. Open the Network panel while converting and check.
Common questions
Do my files get uploaded to a server?
No. Every tool on this site runs entirely in your browser using the Canvas and WebAssembly APIs. There is no upload endpoint in the page — you can confirm this yourself by opening your browser's Network tab while you convert a file. Nothing leaves the tab, which also means the tools keep working if you go offline after the page loads.
Why is my PDF bigger than the PNGs?
Screenshots are flat colour and text, which PNG compresses very efficiently and JPEG does not. The page images are stored as JPEG, so for this kind of content the total can grow.
What happens to transparent areas?
They are composited onto white. A PDF page has no transparent background, so something has to sit behind the image, and white matches how the page will print.
Can I put several screenshots on one page?
No. Each image gets its own page. Combining several onto one sheet is a layout decision that a converter cannot make sensibly on your behalf.