Guides
- How to combine PNG images into one PDF
Turn PNG screenshots, charts and diagrams into one PDF, one image per page in your order: how files are checked, sorted, turned and saved. In your browser, no upload.
- How PNG transparency behaves in a PDF
What happens to a PNG's transparent background in the PDF: kept as a soft mask, never flattened, why it looks white on the page, and which PDF readers we checked.
- Choosing the page size for PNG images
How PNG screenshots, charts and diagrams sit on A4 or Letter pages, when Fit to image works better, how Automatic orientation and margins behave, and long screenshots.
- PNG quality and PDF file size
Does a PNG lose quality in a PDF? How Quality first stores PNGs losslessly, what changes for 16-bit files and in Safari, and when Smaller file helps or hurts.
- Screenshots, charts and the limits of PNG to PDF
What PNG to PDF is for and where it stops: screenshots and charts, animated PNGs, colour profiles, hidden data that is removed, text in images and untested areas.