Convert PNG to PDF
Drop PNG files below and folio embeds each one into its own page of a new PDF — entirely in your browser. PNG transparency is preserved inside the PDF for on-screen viewing.
Drop your images here
They'll be stacked into a single PDF in the order you add them
Max 20 images, 100 MB each.
Every operation runs entirely in your browser. Your files never leave your device.
About PNG to PDF
Why convert PNG to PDF?
PDF is the most portable document format. Bundling PNG screenshots, UI exports or diagrams into a single PDF gives you one neat deliverable that opens cleanly on every device and email client, without extra software.
Does PNG to PDF preserve transparency?
Yes — PDF supports transparency on embedded images, and folio writes the PNG alpha channel through to the PDF. Most viewers render transparent regions correctly on screen. Note that when printing, many viewers paint transparent areas white — for print-ready output, flatten the PNGs to JPG first.
How big will the PDF be?
Roughly the sum of your PNG sizes plus a small overhead. PNG is lossless, so PNGs of photographs produce big PDFs — convert those to JPG first (with another tool) if size matters more than pixel-exact preservation.
About this operation
PNG → PDF
What it does
Drop PNG files in the order you want them and folio embeds each PNG into its own page of a new PDF. PNG transparency is preserved inside the PDF — most viewers render transparent regions correctly on screen, though when printing many viewers paint transparent areas white. For print-ready output flatten the PNGs to JPG first. Pick `Auto` page size to match each PNG's pixel dimensions, or `A4` / `Letter` for printable sheets.
When to use it
- Combine UI screenshots into a single design document
- Bundle logo or icon exports into a print-ready PDF
- Build a portfolio PDF from PNG exports
- Combine diagrams from different tools into one file
Limitations — what it doesn't do
- One PNG per page — no grid layout or multiple images per page
- Lossless embedding — PNGs of photographs produce big PDFs (use JPG to PDF for those)
- Transparency may not survive printing in older PDF viewers
- Up to 20 images per batch, 100 MB per image
More PDF tools
Every tool runs entirely in your browser.
Frequently asked questions
Your PDFs never leave your device
folio is a static page. Every operation runs inside your browser via pdf-lib (edit) and pdfjs (render). There is no server-side processing, no upload, no temporary file, no cache. When you close this tab, every file is gone.
- No account required.
- No server processing. Your PDFs stay on your device.
- No caching, no Service Worker, no IndexedDB persistence.
- pdfjs-dist (lazy-loaded for rendering) is fetched from your own origin; nothing else is sent.