免费在线压缩 PDF — 不上传
- Nothing uploaded
- Works offline after load
- No signup
- No watermark
Search demand is huge for compress PDF, reduce PDF size and compress PDF for email. We re-rasterize pages to JPEG in your browser—best for scans and image-heavy files. Nothing uploads.
Compress PDF online free — no upload
Huge search demand: compress PDF, reduce PDF size, compress PDF for email. This tool re-rasterizes pages to JPEG in your browser with pdf.js + pdf-lib—ideal for scanned or image-heavy PDFs. Private: the file never uploads. No Smallpdf account, no watermark.
- Email & upload limits — shrink before Gmail / forms.
- Three levels — strong, balanced, light quality.
- Works offline after load — verify in the Network tab.
常见问题
Does compressing a PDF upload my file?
No. Compression runs with pdf.js and pdf-lib in your browser. Verify in the Network tab.
Will text stay selectable?
Raster compression turns pages into images (like most “strong compress” tools). Use Light for better quality; keep a copy of the original if you need searchable text.
Is this a Smallpdf alternative?
For private compress-without-upload, yes. No account and no watermark on the download.
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