CSCtools is a high-performance, privacy-focused online utility suite for PDF and image management. All tools run 100% locally in your browser.

Is it safe to use CSCtools for sensitive documents?

Yes, CSCtools uses client-side processing. Your documents never leave your device and are never uploaded to any server, ensuring maximum security and privacy.

Are these tools free?

Yes, all tools on CSCtools are completely free to use with no hidden costs or watermarks.

How to merge PDF files online free?

Simply upload your PDF files to CSCtools PDF Merger Pro, arrange them in the desired order using our drag-and-drop interface, and click 'Generate PDF'. The tool combines everything into a single document instantly in your browser.

Is it safe to merge sensitive PDFs online?

Yes, CSCtools uses 100% local browser-based processing. Your documents are never uploaded to any server, making it perfectly safe for Aadhaar, PAN card, and other sensitive certificates.

Can I merge PDF and images together?

Yes, our PDF Merger supports both PDF and various image formats (JPG, PNG, WEBP). It automatically converts images to PDF pages and merges them into your final document.

How many PDFs can I merge at once?

You can upload and merge up to 50 individual files at once. There is no limit on the number of pages or the total file size, as processing happens locally on your device.

CSCtools

PDF Suite

PDF Merger

Combine Multiple Files into One PDF

Select multiple PDF documents and images to combine them into a professional document. Reorder pages visually and save locally with 100% privacy.

Select or Drop Files

Upload multiple PDFs or Images. Drag pages by the central grip to reorder, rotate, or delete them before merging.

Multi-PDF Images Secure