Lossless · nothing is uploaded
PNG to PDF
One or many PNG images into a single document, one image per page, in the order you choose them. JPG and WebP work here too.
Selected files
Processing details
What happens to a PNG inside a PDF
PNG compression is lossless: the file stores every pixel exactly, which is why screenshots, logos and line art look sharp in PNG and go blotchy as JPEG. A PDF can hold that same lossless compression, so a PNG's image data is carried into the document rather than re-encoded. What you put in is what comes out — no second compression pass, no softened edges around text in a screenshot.
Two things worth checking in the result
Transparency. A PNG with a transparent background has no colour where the page shows through. Open the finished PDF and look at any image that relied on transparency — a logo, a cut-out product shot — to confirm it sits on the page the way you expected rather than against an unexpected fill.
Size. Lossless means large. A folder of full-resolution PNG screenshots makes a PDF that will not fit through most email limits. If the result is too big, send it to Compress PDF rather than shrinking the images first — that keeps your originals untouched and lets you see the real byte count before deciding what quality to trade away.
PNG or JPG for this document?
It depends on what the image is, and the right answer is often both in the same PDF:
- Screenshots, diagrams, logos, anything with text or hard edges — PNG. JPEG compression creates halos around sharp edges, and on a screenshot of text that is immediately visible.
- Photographs — JPG. A photograph has no hard edges to damage, and JPEG stores it in a fraction of the space. A PNG photograph is usually several times larger for no visible gain.
You can select a mixture and each image is carried in using whichever compression it already had.
Getting the page order right
Images are read in the order you choose them, and most file pickers hand
them over in name order. Renaming to 01-…, 02-…
before you start is faster than reordering afterwards — and note that
10 sorts before 2 unless you pad the numbers.
If the pages are photographs of paperwork rather than screenshots, Scan to PDF is the better starting point: it straightens the page, evens out the lighting and crops to the sheet, so the result reads as a document instead of a photo of one.