What this does
Combines PNG images into a single PDF in the order you set. Add your files, drag to reorder, pick a page size, and download one PDF — entirely in the browser, nothing uploaded.
Best for screenshots and crisp graphics
PNG is the format screenshots and exported diagrams arrive in, and bundling them into a PDF is the tidiest way to share a sequence: a bug report walk- through, a step-by-step guide, slide exports, or design mockups. One file, fixed order, opens the same on every device.
What happens to PNG transparency?
PDF pages have a background, so transparent areas of a PNG are flattened onto white when the image is placed. For screenshots and diagrams that's almost always what you want. If you specifically need to preserve an alpha channel, keep the images as PNG rather than wrapping them in a PDF.
Which page-size option should I choose?
- Fit each image — pages match each screenshot exactly, no margins. Best for on-screen viewing.
- A4 / US Letter — each image centered on a standard page with a margin, auto-oriented. Best for printing or formal documents.
Will text in my screenshots stay readable?
Yes — PNGs are embedded losslessly-sourced and rendered at up to 8192 px on the long edge, so screenshot text stays sharp. Note the resulting PDF can be large (PNG screenshots aren't small); the PDF compressor can shrink it if needed.
Is anything uploaded?
No. The PDF is built in your browser with pdf-lib; your images never leave your device. The page even works offline once loaded.