The LMS File Size Problem
Most Learning Management Systems have upload limits:
- Moodle: 5-50 MB (depends on admin settings)
- Blackboard: 25 MB default
- Google Classroom: 100 MB
- Canvas: 500 MB
If your assignment PDF exceeds the limit, you need to compress it.
How Our Compression Works
Our Compress PDF tool uses lossless compression:
- Strips unnecessary metadata (author, creation date, software info)
- Applies object stream compression
- Removes duplicate resources
This typically reduces file size by 10–40% without any quality loss.
Step-by-Step
- Go to Compress PDF
- Drop your file or click to browse
- Click Compress & Download
- See the before/after size comparison
What If It's Still Too Large?
If compression alone isn't enough:
- Split the file: Use Split PDF to submit in parts
- Reduce image quality: If you created the PDF, re-export with lower image DPI
- Remove unnecessary pages: Extract only the required pages
- Convert scans: If you scanned at 600 DPI, re-scan at 150 DPI
Privacy Note
Unlike other PDF tools, your file never leaves your browser. No upload, no server processing, no third-party access to your academic work.