Compress PDF
Shrink a PDF that is too large to send or upload. Choose quality or size first.
Free · No sign-up · Files stay on your deviceHow to use
- Select a PDF file.
- Choose the compression strength. Normal is recommended; grayscale makes it even smaller.
- Press compress and check the result before saving.
FAQ
How much smaller will it get?
Scanned documents and photo-heavy PDFs often shrink by 50–90%. Text-only PDFs may not get smaller.
Can I still select text after compression?
This tool re-saves each page as an image, so text can no longer be selected or searched. Keep the original if you need that.
Are my files uploaded?
No. Compression runs in your browser and the file stays on your device.
Want more tools? DoguBox has 33 tools in Korean, including PDF to Word/Excel, signatures and stamps. Open the Korean site with automatic translation →
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