PNG to PDF, with or without loss
PNG is made for screenshots, diagrams, logos and text, where a JPEG would blur the edges. This page therefore starts with Keep PNG and other images lossless switched on. Each PNG is stored in the PDF with lossless Flate compression, which is the same kind of compression that PNG itself uses. The picture in the PDF has exactly the pixels of your file.
Transparency
If your PNG has transparent areas, lossless mode keeps them, so the page color shows through. If you switch the lossless option off, the PNG is saved as a JPEG, which has no transparency, and the transparent areas become white.
How to convert PNG to PDF
- Choose your PNG files, or drop them on the box.
- Set the order and, if needed, turn an image with the rotate buttons.
- Choose the page size and margin. For a screenshot of a whole page, try Same as image.
- Press Create PDF and download it.
Lossless or JPEG: which one?
| Lossless (Flate) | JPEG | |
|---|---|---|
| Best for | Screenshots, text, charts, logos, line art | Photographs |
| Sharpness | Exact pixels | Small artifacts around edges |
| Transparency | Kept | Becomes white |
| File size | Larger for photos, small for flat graphics | Small |
If a PNG is a photograph, the lossless PDF can be very large. Switch the option off and choose High quality to get a much smaller file.
Large screenshots
Long screenshots, such as a whole web page, can be many thousands of pixels tall. Use the size Same as image to keep them on a single long page, or choose A4 with Fit to scale them down onto normal pages.
See also JPG to PDF and the general image to PDF converter. To shrink PNG files first, use the image compressor.