📑 PDF Merge
Combine multiple PDF files into a single document. Drag to reorder. All processing happens in your browser.
Click to upload or drag & drop PDF files
Select multiple PDFs to merge
📖 How PDF Merging Works
Our PDF merger uses the pdf-lib library to process PDF files entirely in your browser. When you merge PDFs, each page from every file is copied into a new combined document while preserving formatting, images, links, and text. The original files remain unchanged.
Unlike many online PDF tools that require uploading files to a server, ToolPulse processes everything locally on your device. This means your documents never leave your computer, making it completely private and secure — ideal for sensitive documents like contracts, tax forms, or personal records.
❓ Frequently Asked Questions
No. All processing happens locally in your browser using JavaScript. Your files never leave your device. This makes it safe to merge confidential documents.
Since processing happens in your browser, the limit depends on your device's available memory. Most devices can handle PDFs up to 100MB without issues. For very large files, ensure you have enough RAM available.
Yes! Simply drag and drop the files in the list to change their order. The merged document will follow the order shown in the file list.