Catalogs, restaurant menus, product manuals, price lists, and certificates usually live in PDF. On a website, though, PDF is awkward: visitors must download it or wait for a viewer, it looks tiny on phones, and search engines and marketplaces prefer images. PNG pages are heavy and slow the site down; JPG is lighter but smears small text with artifacts.
The short answer: use WebP. Upload your document to our online PDF to WebP converter — each page becomes a separate WebP image at 150 dpi, and multi-page documents also get a ZIP archive. WebP is usually noticeably smaller than PNG and JPG at similar quality. Free, no registration, no watermarks.
Quick answer: PDF to WebP in 3 steps
- Open PDF to WebP and upload one PDF up to 100 MB.
- Click Convert to WebP — processing runs on our server in the background.
- Download the WebP images individually or as a ZIP archive and upload them to your site.
What WebP is and why it became the web standard
Google introduced WebP in 2010 specifically for the web. Lossy WebP is based on the VP8 video codec, and a separate algorithm handles lossless compression. It supports transparency and animation, so it can replace JPG, PNG, and GIF. Safari added support in 2020; today every modern browser — Chrome, Firefox, Safari, Edge, Opera, and their mobile versions — displays WebP, and many CMSs and CDNs convert images to it automatically.
WebP predicts pixel values from neighboring blocks and stores only the difference, then packs it efficiently. According to Google, lossy WebP is on average 25–34% smaller than JPG at comparable quality, and lossless WebP is about a quarter smaller than PNG. Real document pages vary, but the savings are usually noticeable.
WebP vs PNG vs JPG vs PDF
| Feature | WebP | PNG | JPG | |
|---|---|---|---|---|
| Content | Text, vector, raster | Raster | Raster | Raster |
| Compression | Varies | Lossy or lossless | Lossless | Lossy |
| Page image weight | Small for text | Usually smallest raster | Largest | Medium |
| Small text sharpness | Perfect | Good | Excellent | Possible artifacts |
| Transparency | Yes | Yes | Yes | No |
| Inline on a web page | No, needs a viewer | Yes | Yes | Yes |
| Legacy software support | Wide | Limited | Wide | Maximum |
For websites, blogs, and marketplaces WebP wins. For print, office documents, and older software, PDF to PNG or PDF to JPG are safer.
How WebP helps page speed and SEO
Google measures page experience with Core Web Vitals. One key metric, LCP (Largest Contentful Paint), is often an image. Lighter images load faster, especially on mobile. Ten catalog spreads can differ by several megabytes between PNG and WebP — seconds of waiting for a smartphone visitor. Page images can also rank in image search, which a PDF cannot.
- Set width and height in your markup to prevent layout shifts (CLS).
- Lazy-load below-the-fold pages with
loading="lazy". - Write meaningful alt text, such as "2026 catalog, page 3 — garden furniture".
- Link to the original PDF for visitors who want to download or print.
Step-by-step: converting PDF to WebP online
- Prepare the PDF. No password, under 100 MB. If you need only some pages, extract them first.
- Open the converter. Go to PDF to WebP. No sign-up; works on desktop and mobile.
- Upload. Drag the PDF onto the upload area or click to choose it. One PDF per task.
- Convert. Click Convert to WebP. The task is queued on the server; keep the tab open until links appear.
- Download. Each page has its own link; for many pages grab the ZIP archive.
- Publish. Upload to your CMS, site builder, or seller dashboard. If a platform rejects WebP, use PNG or JPG.
Resolution and file size
Dpi (dots per inch) sets how many pixels a page gets when rasterized. Our converter uses a fixed 150 dpi — about 1240 × 1754 pixels for A4. That is comfortable to read on laptops and phones and leaves headroom for high-density screens, since a typical content column is 700–1200 pixels wide. Resolution cannot be changed in the interface.
Size depends on content. As a rough guide for A4 at 150 dpi: a text page on white is typically tens to a couple of hundred kilobytes; a page with photos and color fills is usually a few hundred kilobytes; the same content as PNG is often several times larger.
Preparing your PDF for better images
- Use a digital PDF, not a scan. Files exported from InDesign, Word, or PowerPoint rasterize into clean, sharp images. A phone scan brings gray backgrounds, noise, and skew into the WebP and inflates its size.
- Remove unnecessary pages such as blank spreads and placeholder covers — every extra file is an extra upload.
- Fix page orientation before converting so you do not have to rotate images in your CMS.
- Keep a text version. Duplicate key information (prices, specs, ingredients) as real text on the page so search engines and screen readers can access it.
Where PDF to WebP is useful
- Online stores and marketplaces: manuals, assembly diagrams, size charts, and certificates in product listings.
- Restaurants: a PDF menu becomes fast-loading images for QR-code visitors.
- Blogs and media: report and presentation pages as illustrations.
- Portfolios and documentation: layout spreads and manual illustrations for web help.
Alternative ways to convert PDF to WebP
PNG plus an online optimizer
Save pages as PNG, then recompress them in a tool like Squoosh. Fine-grained quality control, but two steps and manual work per page.
GIMP, Photoshop, XnView MP
GIMP imports PDF at a chosen resolution and exports WebP with a quality slider; recent Photoshop versions support WebP; XnView MP can batch-convert with Ghostscript installed. Pros: control. Cons: installation, often page by page.
Command line
Rasterize with Ghostscript, then compress with Google's cwebp:
gs -dNOPAUSE -dBATCH -sDEVICE=png16m -r150 -sOutputFile=page-%03d.png document.pdf
cwebp -q 80 page-001.png -o page-001.webp
Or in one step with ImageMagick built with WebP support:
magick -density 150 document.pdf -quality 80 page-%03d.webp
Common problems and fixes
Password-protected PDF
If you know the password and may use the file, run Unlock PDF first.
Damaged file
Try Repair PDF and convert again.
PDF over 100 MB
Compress or split the PDF and convert the parts.
Small text looks soft
150 dpi suits normal text, but tiny footnotes may look soft when zoomed. Link the original PDF or use PNG for critical pages. A blurry scan will not get sharper.
Colors look different
Print PDFs may use CMYK while WebP stores RGB, so saturated colors may shift slightly. Check brand-critical colors.
Platform does not accept WebP
Some old CMSs, e-mail clients, and office apps lack WebP support — use PNG or JPG. To rebuild a document, use WebP to PDF.
Security and privacy
No registration. Your PDF is processed on our server in a background queue, results are downloaded by link, and all files are automatically deleted within 48 hours. Remember that images you publish on a site become public — do not post pages with personal data.
FAQ
Is PDF to WebP free?
Yes — free, no registration, no watermarks.
How many images will I get?
One WebP per page, plus a ZIP archive for multi-page documents.
Do all browsers support WebP?
All modern desktop and mobile browsers do.
Can I choose resolution or quality?
No — 150 dpi and balanced on-screen quality are set automatically.
Is the text searchable?
No, it becomes part of the image. Add key text to the page itself or link the PDF.
Can I upload WebP to a marketplace?
Many large marketplaces accept WebP, but rules change — check your seller help center.
Conclusion
WebP is the best way to show PDF pages on a website, blog, or marketplace: light, sharp, and supported by every modern browser. Upload your document to our PDF to WebP converter and get every page or the whole ZIP — free, no registration, no watermarks.