Nothing is uploaded. When you drop or pick a PDF, the tool reads it locally with the browser’s File API, renders each page in memory with the pdf.js engine (whose worker is bundled locally, not fetched from a CDN) and encodes each page to WebP on your machine with the canvas image API. There is no server, upload, database, API or tracking in the processing path, so contracts, scans, statements and private documents stay on your device; the tool works offline once cached, and closing the tab discards everything. The only optional network use anywhere on the site is consent-gated advertising, which never sees your files.

WebP is the modern web image format and usually the best pick when the images are headed for a website, app or email. At matching visual quality its lossy mode is roughly 25–34% lighter than JPEG and its lossless mode about 26% lighter than PNG, so pages load faster and use less bandwidth — a direct win for user experience and SEO. WebP also keeps an alpha channel, so any area a page never paints can stay transparent instead of filled white, which JPEG cannot do. Around 97% of browsers render WebP natively (Chrome, Firefox, Edge, Safari 14+ and all current mobile browsers); the main gap is very old Safari and retired Internet Explorer. If you specifically need the widest possible compatibility choose JPEG, or PNG for pixel-exact line art — both are available from the same format selector on this page.

Each preset combines a render scale with a WebP quality factor. Low (~150 DPI) is fast and light for on-screen use, Medium (~200 DPI) is a good all-round size, High (~300 DPI) is the default and matches print sharpness, and Extra High (~400 DPI) renders the most pixels and passes a quality of 1.0 to the encoder, which the browser treats as near-lossless WebP for the crispest result. Because WebP compression is more efficient than JPEG, you can usually keep a higher quality setting and still get a smaller file. Higher presets render the page at more pixels, so a dense page produces a larger .webp; drop to Medium or Low if you need the lightest possible files for the web.

After you load a PDF the tool builds a thumbnail grid of all pages with every page selected by default; use the per-page toggle, Select All or Clear to pick exactly the pages you want. Click Convert and each chosen page is turned into its own WebP shown in a results gallery, where you can download any single image on its own. If you converted more than one page, the Download All button packages every WebP into a single ZIP created locally with JSZip — no re-upload — so you get the whole document as web-ready images in one click. The same page can also export PNG or JPEG from the format selector if you need a different format.