WebP to PDF

Runs in browser PDF Conversion

PDF has no WebP support, so each WebP is decoded locally and stored as JPEG (opaque photos) or PNG (transparency). Arrange the images, set the page size and download.

Privacy: Processed locally in your browser. Your file is not uploaded.

When should PNG, JPEG or WebP be used?

PNG is lossless with transparency, right for screenshots, diagrams and anything with sharp edges or text; JPEG is lossy and much smaller for photographs; WebP offers both modes at roughly 25–35% smaller sizes than the older formats and is supported by every current browser. Converting a page to an image fixes its appearance but loses the text layer, so the choice depends on whether the result must stay searchable.

How to use WebP to PDF

  1. Drop WebP files.
  2. Choose page size and whether to store as JPEG.
  3. Click "Convert to PDF".
  4. Download.

WebP to PDF features

  • WebP decoded by the browser, stored as JPEG or PNG
  • Transparency kept as PNG
  • Animated WebP: first frame
  • Page size and margin options
  • Batch conversion
  • Local processing

WebP to PDF example

Product images for a catalogue

Input:

6 × WebP, store as JPEG at 90%, page A4

Output:

catalogue.pdf — 6 pages, notes list each conversion

Frequently asked questions about WebP to PDF

Why is WebP converted?

The PDF format only stores JPEG, JPEG 2000, Flate (PNG-like) and a few other codecs, not WebP. The image is decoded and re-encoded once; with "Store as JPEG" at 90% quality the difference is invisible.

Are animated WebP files supported?

The first frame is used; a PDF page cannot animate.

Does it keep transparency?

Yes — an image with transparent pixels is stored as PNG with its alpha channel; opaque images can be stored as JPEG to save space.

Is my PDF uploaded to a server?

No. The file is opened and processed by your browser with WebAssembly and JavaScript; nothing is sent to Mutqan Soft or anyone else. Close the tab and the file is gone. Downloading the result needs a free account — no subscription, no payment.

What are the size limits?

Up to 250 MB and 2,000 pages per operation on a desktop browser, 60 MB and 500 pages on a phone, because everything runs in your device’s memory. The tool tells you before it starts if a file is over the limit.

Technical notes

PDF has no WebP codec. createImageBitmap decodes the file; opaque images are re-encoded as JPEG (quality 90 by default), images with alpha as PNG. The result notes list which files were converted and to what.

References