Reduce PDF File Size Online
PDF Win compresses embedded images and removes redundant PDF objects to reduce the file size significantly - without visibly affecting text clarity or document structure. The result is faster email delivery, easier cloud uploads, and lower storage costs.
How it works
- Upload your PDF.
- Click Compress PDF.
- Download the smaller PDF - text remains sharp, images are optimised.
Tips for best results
- PDFs with many high-resolution images see the biggest reduction - often 50-80%.
- Text-only PDFs are already small; compression gains are minimal.
- If the compressed file is still too large for your email attachment limit, try splitting it into two parts using our Split PDF tool.
- Original formatting, hyperlinks, and bookmarks are preserved after compression.
Frequently asked questions
- How much smaller will my PDF get?
- PDFs heavy with photos typically shrink 40-80%. Text-heavy documents may only reduce by 5-15%.
- Will compression affect print quality?
- For on-screen viewing and standard printing, quality remains visually identical. Very large-format printing may show some difference.
- Is the original file changed?
- No - your original file is untouched. We return a new, compressed copy.