Compress PDF Files Online
Reduce PDF file size online for portals, email, storage, and document sharing. Slim Files focuses on practical compression while keeping the workflow simple and secure.
Drop files or click to upload
Max file size: 50MB. Supports PDF files.
Professional Grade
Metadata Stripping
EXIF and producer fields removed by default.
Auto-Cleanup
Files purged from disk within 1 hour.
Validated Inputs
Files checked by content, not by extension.
Direct API Access
Process higher volumes with plan-based limits, authenticated requests, and the same server-side validation used by the web app.
View PlansFiles purged from disk within 1 hour
How to use PDF Compressor
Upload your PDF document.
Our engine automatically identifies potential size savings.
Download your optimized, smaller PDF file.
Best Use Cases
- Official document submissions
- Emailing large reports
- Archiving digital records
Pro Tips
- "PDFs with many images see the most dramatic reduction."
- "Our tool preserves text-searchability and OCR layers."
Supported Formats
All transformation engines are optimized for high-fidelity output.
Frequently Asked Questions
Will my PDF lose text quality?
No. We selectively compress images and non-critical data. All vector graphics and text layers remain sharp.