ConvertWarp

PNG to PDF

Make a one-page PDF from a PNG. The image is embedded, not re-encoded, so transparency stays.

PDF tools use pdf-lib (MIT).

About this tool

Screenshots and logos often need to travel as a PDF without losing a transparent background. This page embeds a PNG on one PDF page. The PNG is not flattened to JPEG first.

If you have several pictures of mixed types, Image to PDF is the binder. If you only have a JPEG, JPG to PDF is the smaller embed.

The PNG is sniffed, then embedded with pdf-lib in the browser so alpha stays. 50 MB and 32 megapixels apply. The page size matches the bitmap.

How to put a PNG on a PDF page

  1. Choose one PNG. Embedding happens locally.
  2. Convert. The PNG is embedded, not re-encoded as JPEG.
  3. Download the one-page PDF with the PNG still inside.

One PNG, 50 MB / 32 MP. Animated PNG is not a multi-page PDF. Password files are not created here.

FAQ

Does the PNG leave the browser?
No. Embedding is local. ConvertWarp does not store the PDF.
Is transparency kept?
Yes. That is why this page exists beside JPG to PDF.
Why is the PDF large?
The PNG bytes are inside the PDF. Compress PDF may pack structure but will not redraw the picture as a smaller JPEG.
Can I use WebP?
Use Image to PDF. WebP is not a native PDF image the way JPEG and PNG are.
Will print shops accept it?
As a raster-on-a-page, yes in most cases. It is not a press-ready PDF/X file.

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