PDF to WebP converter

The quality slider lets you set a value from 60% to 95%. Higher values mean better image quality but larger file sizes.

• 80% (default) - a good balance for most use cases: business websites, blogs, articles. The visual difference compared to the original is virtually unnoticeable.
• 85–90% - for product photography, portfolios, and galleries where quality is the priority.
• 60–70% - when minimizing file size is the priority, e.g. thumbnails in category grids.

At 80% quality, the visual difference between the original PDF and the resulting WebP is virtually imperceptible to the naked eye, while the file is significantly smaller.

Core Web Vitals is a set of performance metrics Google uses when evaluating websites. One of them - LCP (Largest Contentful Paint) - measures the time it takes for the largest visible element to appear on screen. On many pages, that element is an image.

Converting PDF images to WebP reduces graphic file sizes, which directly shortens resource download time and improves the LCP score. Smaller files mean faster page loading - especially important on mobile devices with slower connections. Additional techniques like loading="lazy" and fetchpriority="high" speed up rendering.

Tools like PageSpeed Insights and Lighthouse identify specific files worth optimizing.

Savings depend on the source file type and its original compression. Below are example results:

Actual savings may vary depending on image content and quality settings. The converter shows the exact size before and after conversion for each file.

WebP offers the best balance of quality and file size for web use. Files are 25–35% smaller than JPG at equivalent quality and support both lossy and lossless compression modes.

Choose WebP when the images will be displayed on websites or shared digitally. Choose JPG when you need maximum compatibility (older devices, email clients). Choose PNG when you need lossless quality (documents with text, technical drawings).

WebP is supported by all modern browsers (Chrome, Firefox, Safari 14+, Edge). For the few remaining users on very old browsers, serve JPG as a fallback using the HTML <picture> element.