PDF WebP 変換
PDFの各ページを高効率な最新のWebP画像に変換します。
About PDF to WebP
How PDF to WebP Conversion Works
WebP is Google’s modern image format — it produces smaller files than JPEG at the same visual quality. This tool renders each PDF page at your chosen DPI and encodes it as WebP with adjustable quality.
One page becomes one WebP file. Multiple pages get zipped together. Everything runs in your browser. No server, no upload, no account.
When to Choose WebP
WebP was built for the web. If your images end up on a website, WebP gets them there smaller and faster.
Website Performance
WebP images are 25–35% smaller than JPEG at equivalent quality. Convert PDF pages for your blog, documentation site, or portfolio and your pages load faster.
Core Web Vitals
Google’s ranking signals care about image size. Serving WebP instead of JPEG can improve your Largest Contentful Paint score measurably.
CDN-Friendly
Smaller files mean lower bandwidth costs and faster delivery through your CDN. Convert report pages or infographics to WebP before publishing.
Modern Browser Support
All major browsers support WebP. Chrome, Firefox, Safari, and Edge handle it natively. The only holdout is very old browser versions nobody uses anymore.
How It Compares
| 機能 | OxygenPDF | Adobe Acrobat | Zamzar |
|---|---|---|---|
| WebP output format | |||
| DPI control | N/A | ||
| Quality slider | N/A | ||
| Page range selection | N/A | ||
| No file upload required | N/A | ||
| Free to use | Limited |
Quality vs. File Size
WebP’s quality slider runs from 0.6 to 1.0, just like JPEG. But at the same setting, the WebP file is significantly smaller. A page rendered at 150 DPI with 0.85 quality might be 30% lighter than its JPEG equivalent. For web publishing, that’s a meaningful difference.
DPI matters too: 72 for quick thumbnails, 150 for readable web content, 300 when you need high-resolution detail.
Privacy: No Upload Required
Your PDF is rendered and encoded entirely in your browser. The file stays on your device. No upload, no server processing, no trace. Walk away and there’s nothing left on any server.
PDF WebP 変換: よくある質問（FAQ）
このツールの使い方や仕様に関するよくあるご質問です。
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