Compress PDF
Reduce PDF file size with lossless optimization or strong raster compression.
How to use
- 1
Upload your PDF
Select or drop a PDF file. The tool shows the original file size before compression.
- 2
Choose a compression mode
Optimize re-saves the PDF structure for modest gains while keeping text selectable. Strong rasterizes pages for maximum reduction.
- 3
Compare and download
Review original vs compressed size and percentage saved. Download the smaller file, or keep the original if compression did not help.
Frequently Asked Questions
Optimize adjusts PDF structure without changing page content. Strong renders each page as a JPEG image, which shrinks scans but removes selectable text.
Text-only or already-optimized PDFs may grow when rasterized. The tool warns you and lets you keep the original.
No. Compression runs entirely in your browser. Your file never leaves your device.
Strong mode with Medium or Low quality usually gives the biggest size reduction on image-heavy PDFs.
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