PDF Compressor — Free Online Tool
Reduce PDF file size by removing redundant internal objects, compressing object streams, and removing metadata bloat. This is a structural optimization — image pixels are not resampled so no visual quality is lost. Typical savings are 5–30% depending on how the PDF was originally generated.
100% client-side. No uploads. Your data never leaves your browser.
How to use PDF Compressor
- Upload the PDF you want to compress.
- The tool analyzes the structure and shows the original file size.
- Click 'Compress' to apply structural optimization.
- Download the compressed PDF and compare sizes.
Frequently Asked Questions
Does this reduce image quality?
No. The compression is structural — it removes redundant PDF objects and compresses streams. Image pixels are not touched.
Why are savings only 5–30%?
PDFs generated by Acrobat or Word are already fairly optimized. PDFs from print workflows or scans with embedded fonts have more room for savings.
Can I achieve greater compression by reducing image quality?
Not with this tool — it is lossless only. For lossy compression, use a service like Smallpdf that downsamples embedded images.
Related tools
Related reading
Browse all free tools · theproductguy.in