Compress PDF
Reduce PDF file size by optimising internal structure and objects.
Drop a PDF to compress or browse
How it works
- 01Select or paste your input into the tool.
- 02Adjust any available options to suit your needs.
- 03Download or copy the generated output instantly.
Frequently asked questions
How to compress a PDF online without losing quality?
To compress a PDF without losing quality, upload your file to our tool. It optimizes internal structure, metadata, and object structures client-side, giving you a smaller file size while keeping text and layout perfectly sharp.
Is it safe to compress private or sensitive PDF documents online?
Yes, it is completely secure. Because the compression runs locally inside your web browser on your device, your PDF documents are never uploaded to any remote server. Your confidential data stays on your machine.
How much can I reduce my PDF file size?
The reduction depends on the source PDF. Documents with redundant fonts, metadata, or unoptimized data objects can often be compressed by 30% to 70%.
Do I need Adobe Acrobat to shrink my PDF?
No, you do not need Acrobat or any desktop installation. This tool runs directly in your web browser across Windows, Mac, Linux, and mobile devices.
Can I compress scanned PDF files?
Yes. Scanned PDFs containing images can be optimized by adjusting page parameters, which helps reduce the total file size of image-heavy documents.