Compress PDF
Shrink large PDF files by optimising embedded images and removing redundant data.
Your files are processed entirely in your browser using JavaScript. They are never uploaded to a server, so nothing leaves your device.
How to use Compress PDF
- 1Upload the PDF you want to compress.
- 2Choose a compression level.
- 3Download the compressed file and compare the size reduction.
About Compress PDF
This tool reduces PDF file size by re-encoding embedded images and removing redundant document data. Compression results vary — PDFs that are mostly text compress less than image-heavy scanned documents.
Benefits
- • Make large PDFs easier to email or upload where size limits apply.
Common mistakes
- • Expecting large size reductions on text-only PDFs, which are already fairly compact.
Frequently Asked Questions
Higher compression levels reduce embedded image quality more aggressively. Text and vector content remain sharp regardless of the compression level.
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