Why compress a PDF?
Large PDF files are hard to share by email, slow to load, and take up unnecessary storage. Compressing a PDF reduces its file size while keeping its content readable — text, bookmarks, and links are fully preserved.
Step-by-step guide
Choose your compression level
iWorkPDF offers three levels: Max compression (smallest file, lower image quality), Recommended (balanced — best for most use cases), and Light (minimal compression, best visual quality).
Instant size estimate
Before you compress, iWorkPDF scans your PDF to estimate how much it can be reduced. PDFs with embedded images can typically be reduced by 40–70%.
Download instantly
Your compressed PDF is generated locally in your browser and downloaded immediately. Nothing is uploaded to any server.
Tips
- PDFs that are already highly compressed may not reduce much further.
- If your PDF contains mainly text and vector graphics, the gain will be smaller than for image-heavy PDFs.
- For the best balance between size and quality, use the "Recommended" setting.
FAQ
Does compressing a PDF lose quality?
Only image quality is reduced. Text, bookmarks, internal links, and document structure are fully preserved.
Is there a file size limit?
No. iWorkPDF runs entirely in your browser and is limited only by your device's RAM.
Is it really free?
Yes, entirely free. No account required, no watermark, no limit.