PDF Tools
Compress PDF
Reduce PDF size in your browser. Choose structure rewrite, balanced metadata stripping, or strong JPEG page rasterization for scan-heavy files.
Loading tool…
How to use
- Upload a PDF (max 10 MB)
- Pick a compression mode (structure, balanced, or strong)
- Compare sizes and download the result
Next step
- PDF Merge
Merge multiple PDF documents into a single file in your browser using pdf-lib. Reorder by upload sequence and download the result.
- Rotate PDF
Rotate all pages or a selected range in a PDF. Processing stays in your browser with pdf-lib.
- Split PDF
Split a PDF into individual page files or custom page ranges in your browser. Download one combined range or each page separately.
Frequently asked questions
Are PDFs uploaded to a server?
No. Compression runs locally in your browser with pdf-lib and, for strong mode, pdf.js.
What is strong mode?
Strong mode redraws each page as a JPEG image and rebuilds the PDF. It often shrinks scans a lot, but text becomes an image (not selectable).
Why did structure mode barely shrink my file?
Already optimized or image-heavy PDFs need balanced/strong modes. Structure mode mainly rewrites object streams.