Will compression reduce the quality of my PDF?

Higher compression can reduce image quality slightly. Use medium or low compression when you need to preserve fine detail; use high compression when file size is the priority.

Can I compress password-protected PDFs?

Password-protected PDFs must be unlocked before compression. Use the unlock tool first if your file has a password.

Compress PDF

Reduce PDF file size by optimizing internal structure and images without losing readability.

Click to upload or drag & drop

Upload a PDF to compress

How to Use

1
Upload the PDF you want to compress.
2
Select a compression level: low (minimal size reduction), medium (balanced), or high (maximum reduction).
3
Wait for the tool to process your file.
4
Download the compressed PDF and compare file sizes.

Frequently Asked Questions

About Compress PDF

What is Compress PDF?

Compress PDF is a tool that reduces the file size of your PDF documents. It optimizes images, removes redundant data, and streamlines the internal structure. The result is a smaller file that is easier to email or upload.

Why Use Compress PDF?

Large PDFs are difficult to email, slow to upload, and can exceed size limits on forms and submission portals. Compression reduces file size while keeping text readable and images clear enough for most uses.

How to Use

Upload your PDF and choose a compression level (low, medium, or high). The tool processes the file and shows the new size. Download the compressed version when ready.

Example Usage

Shrink a 15 MB portfolio PDF to under 5 MB for a job application. Compress scanned documents before sending by email. Reduce a presentation export to meet a 10 MB upload limit.