✅ Last updated: August 12, 2026
📎
Merge PDF
Combine multiple PDFs into one
✂️Split PDF
Extract pages or split by range
🗜️Compress PDF
Reduce PDF file size
🔃Rotate PDF
Fix page orientation
📄Extract PDF Pages
Pick any pages to save
Frequently Asked Questions
Yes, 100% free. No subscription, no credits, no watermark, no file size limit. Every tool on Calcus is free forever.
Completely. All processing happens in your browser. No files or data are sent to any server. Your inputs never leave your device.
Most tools work offline after the first load since they run entirely in JavaScript. Calculator tools, converters, and text tools all work without internet.