Free Online Tool

PDF Compressor Online

Reduce PDF file size quickly and easily. Your PDF is processed directly in your browser.

PDF

Upload Your PDF

Drag & drop your PDF here or click to browse

PDF files • Recommended under 25MB

PDF

document.pdf

0 KB

Original Size —

Pages —

Status Ready

Compression Level

Choose the balance between PDF size and image quality.

Low Compression Better quality with moderate size reduction.

Recommended Balanced quality and file size.

High Compression Smaller file with stronger image compression.

💡 Image-heavy PDFs usually get the biggest reduction. Text-heavy or already-compressed PDFs may show a smaller reduction.

Compressing your PDF...

✓

PDF Compression Complete

Your compressed PDF is ready.

↓ Download Compressed PDF

Free Online PDF Compressor

ToolifyHub's PDF compressor reduces PDF file size by rendering PDF pages and rebuilding the document with optimized JPEG images. Processing happens directly in your browser, so the selected PDF does not need to be uploaded to a ToolifyHub server.

Upload PDF

Select a PDF file from your computer or drag it into the upload area.

Choose Compression

Select low, recommended or high compression depending on the required file size and quality.

Download File

Download your newly generated compressed PDF when processing is complete.

Frequently Asked Questions

Yes. ToolifyHub's PDF compressor is available to use for free in your browser.

No server upload is required by this page. PDF processing is performed locally in your browser using client-side PDF libraries.

The compressor rebuilds each PDF page as an optimized JPEG image. Image-heavy PDFs can therefore receive significant size reduction. Results vary depending on the original PDF.

This browser-based compression method converts PDF pages into images, so text in the compressed output may no longer be selectable or searchable. The original PDF remains unchanged.

PDFs containing large photographs, scans and other high-resolution images generally have more potential for size reduction than PDFs that are mostly text or already compressed.