When to use PNG to PDF
A product manager has signed-off wireframe screenshots saved as PNGs — one per screen — and needs to hand the design team a single PDF to mark up together in Adobe Acrobat. Drop all the PNGs here, drag them into user-flow order, and pdf-lib embeds each image on its own page directly on your computer, preserving the lossless quality and any transparency in the source files. The same approach works when you're archiving screenshot-based instructions as a permanent document or submitting multiple graphics through a procurement portal that only accepts PDF attachments. Nothing is uploaded — the conversion runs in this browser tab from start to finish, and the finished PDF downloads immediately and opens in any reader without extra plugins.
- Archive signed-off wireframe PNGs as a single PDF for design review
- Submit multiple graphic assets through a portal that only accepts PDF
- Package screenshot-based onboarding instructions into a shareable guide