NearPDF
文件不离开您的设备
中文

Smaller PDFs.
Still on your device.

Compress PDF structure without changing image quality, or choose JPEG optimization for image-heavy documents. Files never leave your device.

将 PDF 文件拖放到此处
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→ 0 个文件发送到服务器 · 所有处理都在您的设备上完成

所有功能
所有处理都在您的设备上完成
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∅保留期限

Compress without sending your document away

NearPDF runs in a browser worker. It optimizes PDF structure and optionally compatible JPEG images while keeping text, page dimensions and form fields. It does not turn your pages into screenshots.

使用方法

  1. Choose Compress PDF and add your original PDFs.
  2. Keep original quality, or choose an optional JPEG optimization mode.
  3. Press Compress PDFs. Processing runs on your device; original files are not overwritten.
  4. Check the before/after sizes and download the PDF, or ZIP for multiple files.

What stays, and what changes

Compression keeps the original document structure rather than copying pages, so text, links, bookmarks and form fields are retained. Page edits in the workspace are not applied in compression mode. JPEG optimization skips masks, unusual color spaces and oversized images instead of risking changes. Signed and encrypted files are rejected. Compression is not sanitization and does not remove PDF scripts or attachments.

Will every PDF get smaller?

No. Already optimized PDFs and PNG-based scans may not shrink. When the result is not smaller, NearPDF keeps the original bytes and reports no reduction.

Does compression reduce quality?

Keep original quality changes PDF structure only. JPEG optimization reduces the resolution and quality of compatible embedded photographs; text is not rasterized. Check the result before submitting it.

Can I compress several PDFs together?

Yes. Every original is optimized separately and packed into one ZIP. Files are not merged; their names are prefixed to prevent collisions.

可以离线使用吗?

页面加载完成后,所有处理都在您的浏览器中本地进行。

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