Use the free WebP to PDF Converter below: your PDF never leaves your browser — all work happens on your device, and nothing is uploaded to any server.
What is WebP, and why does it need converting?
WebP is Google’s modern image format. It makes files smaller than JPG or PNG at similar quality, which is why websites love it: pages load faster and use less data. The catch is that the rest of the world has not fully caught up. Many PDF tools, printers, and older systems do not accept WebP at all. Download an image from the web today and there is a good chance it arrives as a .webp file that your usual tools refuse.
Converting WebP to PDF solves that in one step. The images become pages in a standard PDF that opens everywhere, prints anywhere, and can be attached to an email or a form without a second thought. No more “unsupported format” errors.
How this tool converts
Choose your WebP images and press the button. The tool first decodes each WebP image in your browser using the canvas element — browsers understand WebP natively, so this step is reliable. It then turns the decoded image into a PNG in memory and embeds it as a full page in a new PDF with pdf-lib. The finished PDF downloads at once.
Nothing is uploaded. Decoding and PDF building both happen on your device, so your images stay private. That matters when the images are screenshots of work, personal photos, or anything you would not want on a server.
Why not convert to JPG or PNG instead?
You could, and sometimes you should. If you need to edit a single image, converting to PNG is the right move. But if you need to share, print, or archive a set of images, PDF is better: one file, fixed order, same appearance everywhere. A PDF also prints far more predictably than a loose image, because page size and margins are part of the file.
Think of it this way: image formats are for editing, PDF is for sharing. When the editing is done and the set is final, PDF is the format that travels best.
Quality: what you gain and lose
WebP is already a compressed format, so decoding it does not restore any detail that was lost when it was created. The PDF will look as good as the WebP did — no better, no worse. Converting through PNG in memory is lossless at that stage, so the tool itself adds no further damage. If a WebP looks blurry, the PDF will look blurry too, and no converter can fix that.
File size is the trade-off. PNG pages are larger than the original WebP files, so the PDF will be bigger than the sum of the WebPs. That is normal and expected. If size matters more than perfect quality, you can shrink the images before converting, but for most sharing and printing, the larger PDF is fine.
Practical tips
Select images in the order you want them, because the tool keeps selection order. If order matters — a comic, a tutorial, a set of screenshots — rename files with numbers first and select them sorted by name. After downloading, flip through the PDF once to confirm order and orientation before you send it. A sideways page is easy to miss and embarrassing to share.
For printing, remember that WebP images from the web are often screen-resolution, around 72 to 96 dots per inch. They will look fine on screen and acceptable on paper at normal sizes, but blowing a small web image up to a full A4 page will look soft. Keep print sizes modest for web-sourced images.
Common questions
Why does the tool use canvas? Because PDF libraries cannot embed WebP directly. Canvas decodes WebP in the browser, and the decoded image can then go into the PDF as PNG.
Can I convert animated WebP? No. Only the first frame is used. Animated images need a video or GIF tool instead.
Does it work with transparent WebP? Yes. Transparency is preserved through the PNG step, and the PDF page shows the image as it was.
Are my images private? Yes. Everything runs locally in your browser and nothing is uploaded.