压缩 PDF
直接在浏览器中缩小 PDF 文件大小，更方便分享和上传。
在您的浏览器中处理 — 文件从不上传
Compress PDF reduces file size by re-encoding embedded images and stripping unnecessary data, so your document is easier to email, upload, or store.
Choose a compression level to balance file size against visual quality, and compare the before/after size before you download.
常见问题
How much smaller will my PDF get?
It depends on the content. PDFs with large embedded images typically shrink the most, sometimes by 50-90%. Text-heavy PDFs compress less since there's less to optimize.
Will compression make my PDF blurry?
At the default setting, quality loss is minimal. If you choose the strongest compression level, images are downsampled more aggressively, which can reduce sharpness on zoomed-in images.
Is compression done on TAMPDF's servers?
No. Compress PDF runs locally in your browser, so your file is never uploaded anywhere.
Can I compress a password-protected PDF?
Not currently. Remove the password protection with another tool first, then compress the file.