Merge PDF – Combine PDF Files Online for Free | ToolTree
Combine multiple PDF documents into one single file instantly. Free, secure, and preserves document quality. Reorder files with drag-and-drop.
Free Merge PDF
Combine multiple PDFs in seconds. Reorder them using drag-and-drop to get the perfect sequence. All processing is 100% private and happens in your browser.
Add PDF Files
Up to 10 files, max 10MB each
Safe & Private: Your documents never leave your device. We use browser-native processing to merge your files securely.
Note: Drag and drop files in the right section to reorder the merging sequence.
Files to Merge (0)
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What is PDF merging?
PDF merging is the process of combining two or more separate PDF files into a single document. This is useful for grouping related reports, managing scan results, or organizing project documentation without having to manually copy content.
Secure Browser Processing
Unlike traditional PDF editors that upload your files to their servers, ToolTree uses `pdf-lib` to handle all logic directly in your browser. This means your sensitive documents never leave your computer, ensuring 100% privacy.
Frequently Asked Questions
Can I merge unlimited PDFs?
For optimal browser performance, we support merging up to 10 files at a time with a total size of up to 50MB.
Are my files secure?
Absolutely. We don't have a backend that receives your files. All operations are local and private to your browser session.