Compress PDF
Reduce heavy PDF file sizes for email sharing while preserving sharp text and image clarity.
Drop a PDF here to compress
Max 50 MB — text remains crisp, image metadata is optimised
How to Use Compress PDF
- Upload Heavy PDF: Select or drag your large PDF document into the upload area.
- Compress File: Click 'Compress PDF' to initiate stream optimization and object deduplication.
- Inspect Size Savings: Review the real-time before and after file size comparison and savings percentage.
- Download Optimized PDF: Download your lightweight PDF ready for email attachments or fast web publishing.
Frequently Asked Questions
Does PDF compression make text blurry or unreadable?
No. Text is represented as mathematical vector outlines and retains pixel-perfect crispness at all zoom levels. Compression optimizes embedded high-resolution bitmaps, structural trees, and cross-reference tables.
How much file size reduction can I expect?
Savings typically range between 20% to 75% depending on how the original PDF was created (e.g. scanned documents with unoptimized images yield the largest reductions).
Is this compressor safe for bank statements and invoices?
Yes. Files are processed in ephemeral memory and discarded immediately. No copies are ever saved to disk or shared with third parties.
What is the maximum upload limit for PDF compression?
Our engine supports PDF files up to 50 MB per document.
Can I compress password-protected PDF files?
Currently, encrypted or password-locked PDFs must have their security restriction removed before optimizing.
Does compression remove digital signatures?
Structural re-serialization may invalidate cryptographic certificate signatures. If maintaining legal cryptographic seals is required, verify your workflow requirements.