Compress PDFPDF 压缩
Reduce PDF file size in your browser.在浏览器中压缩 PDF 文件大小，适合上传、发送和提交材料。
Your files are processed entirely in your browser. Nothing is uploaded to any server.所有文件均在浏览器本地处理，不会上传到服务器。
About this tool工具说明
Reduce PDF file size in your browser. Works directly in your browser - no software to install, no account required, completely free.在浏览器中压缩 PDF 文件大小，适合上传、发送和提交材料。
FAQ常见问题
Which PDFs compress best?
Scanned or image-heavy PDFs usually shrink more. Text-only PDFs may already be optimized.
Will text remain selectable?
Pages are rebuilt as images for compression, so selectable text may be lost.
Are files uploaded?
No. Rendering and rebuilding happen locally in your browser.
哪类 PDF 压缩效果最好？
扫描件或图片较多的 PDF 通常更容易变小。纯文本 PDF 可能已经很小。
文字还能选中吗？
压缩会将页面重建为图片，文字可能不再可选中。
文件会上传吗？
不会，渲染和重建都在浏览器本地完成。
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