Compress PDF
Shrink bulky PDF files for easy email attachments and web distribution. AnTPDF optimizes object cross-reference tables, strips bloated structural metadata, and cleans redundant dictionary streams entirely in your browser.
Drop PDF to compress and optimize
Reduce file size in-memory without uploading to any cloud server
How to use Compress PDF in 3 steps
Choose PDF to Compress
Select your heavy PDF document. It will be loaded into browser memory.
Choose Compression Profile
Pick between High, Medium, or Low compression depending on your desired balance.
Compress & Download
Download your optimized PDF with detailed file size comparison statistics.
AnTPDF vs Cloud Converters
| Capability | AnTPDF Client Studio | Legacy Cloud Services |
|---|---|---|
| Server Uploads | 0% (Local WASM) | 100% Uploaded to Cloud |
| File Size Limit | Unlimited (RAM Bound) | Capped at 15MB free |
| Daily Task Limits | Zero Paywalls | 2 tasks per day lock |
| Processing Speed | Sub Second Execution | Slow cloud queues |
| Execution Privacy | 100% In Browser RAM | Remote Cloud Server |
Frequently Asked Questions
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Lock and encrypt your PDF with strong 128-bit password protection.
Unlock PDF
Strip password locks and restrictions from your authorized PDF files.