Convert PDF to WebP
WebP is the image format of the modern web: lighter than PNG or JPEG at equivalent visual quality, and readable by every recent browser. This tool rasterizes each page of your PDF through the pdf.js engine — the same one that powers the Firefox PDF viewer — then encodes the rendering as WebP. A single page gives you a .webp file; multiple pages ship in a ZIP archive named by page number. Typical uses: cover thumbnails for a website, an illustration for an article, a quick preview of a document without a viewer. Everything happens on your device: the file never leaves your browser. Choose 72, 150 or 300 DPI in the panel; 150 DPI is selected initially. This setting controls how many pixels are rendered from each page before WebP encoding. The encoder uses a fixed quality value of 0.92, with no separate quality slider. Raising DPI increases pixel dimensions but does not recover missing detail in an already blurry scan. Text, drawings and photos all become part of the same flat image, so PDF text selection, links and form controls do not survive as interactive features. For an article illustration, check small captions at the actual display size before choosing a larger preset. The browser must support WebP encoding: if it returns a different image type, conversion reports an error instead of saving a mislabeled file. Keep the PDF for searchable reading and use the images as visual derivatives. To export a selected subset, first extract those pages into a separate PDF; this panel converts the supplied document rather than offering an individual page picker.
FAQ
What are the limits?
One PDF up to 50 MB and 1,000 pages — each page is rendered then encoded, which takes some time on long documents.
Can I convert only part of the document?
Extract the wanted pages first with Extract Pages, then convert that file — the whole document is rasterized otherwise.
Is WebP readable everywhere?
Every recent browser and most image tools read it; for older pipelines, PNG or JPG exports are also available from the same panel.
Does the output keep transparency?
PDF pages render on an opaque background — for transparent assets, extract the embedded images directly with Extract Images instead.
Why do some pages take longer?
Dense vector or image-heavy pages cost more to rasterize — a text page is near-instant, a complex plan takes a few seconds.
Why WebP instead of JPG or PNG?
At comparable visual quality, WebP produces noticeably smaller files — ideal for publishing page previews on the web.
What output resolution?
Rendering follows the same scale as the PDF→JPG/PNG conversions, sharp enough for clean on-screen display.
Is my PDF sent to a server?
No — reading, rasterization and WebP encoding all run inside your browser.
How are the files named?
page-1.webp, page-2.webp… bundled in a ZIP archive as soon as there is more than one page.
Do all browsers support WebP encoding?
Recent browsers (Chrome, Firefox, Edge, Safari 14+) encode WebP via canvas; otherwise the tool shows an explicit error.
Is the source PDF modified?
No — the original file is never altered; only a rasterized copy is produced.
How to proceed
- Drop your PDF in the drop zone
- Pick the WebP format in the conversion panel
- Run the conversion — each page is rasterized then encoded
- Download the .webp file or the ZIP archive of pages