Compress PDF

Reduce PDF file size for email and easier sharing.

Note: Compression results vary based on PDF content. PDFs with images compress better than text-only PDFs.

Typical compression results

PDF TypeOriginalCompressedReduction
Scanned document15 MB2.1 MB86%
Photo-heavy presentation8 MB1.8 MB78%
Text with charts3 MB1.2 MB60%
Text-only document500 KB480 KB4%

Frequently Asked Questions

How much can PDF files be compressed?

Compression depends on content. PDFs with images can be reduced 50-90%. Text-only PDFs are often already optimized and may see little reduction.

Will compression affect quality?

High Quality mode preserves most quality. Balanced mode offers good quality with smaller size. Maximum compression may reduce image quality slightly.

Are my PDFs uploaded to a server?

No. All processing happens entirely in your browser. Your files never leave your device.

Why didn't my PDF get smaller?

Some PDFs are already optimized or contain mostly text/vector graphics which don't compress well. Try Maximum compression for better results.

Is there a file size limit?

The tool supports files up to 100MB. Very large files may be slower to process depending on your device.

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