Frequently Asked Questions
How much smaller will my file be?
It depends on your document. PDFs with many images typically see the biggest reductions (50-90%). Text-heavy PDFs may see smaller reductions (10-30%).
Does compressing a PDF lower its quality?
The tool balances file size and clarity. Choose Low compression for best quality, Medium for balanced results, or High for maximum size reduction.
Is my PDF uploaded to a server during compression?
No. All compression happens locally in your browser. Your files never leave your device, ensuring complete privacy for sensitive documents.
Why is my compressed PDF larger than the original?
This can happen with PDFs that are already optimized or contain mostly text. Try a higher compression level, or note that some files simply can't be compressed further.
Can I compress multiple PDFs at once?
Currently, you can compress one PDF at a time. For batch compression, process each file individually or use our Combine PDF tool to merge them first.