Combine multiple PDF files into a single document in your browser.
Private · Browser-based · No account · No upload
Content updated 2026-07-11 · PDF Tools
Merge PDF is a free online tool on AllToolHub that helps you combine multiple pdf files into a single document in your browser.
Unlike installable desktop suites, Merge PDF loads in a tab so you can finish a task without creating an account or learning a heavyweight app.
Keywords people use for this page include merge, combine, join, pdf — if that matches your task, you are in the right place.
Yes. Merge PDF on AllToolHub is free, requires no account, and is built to run in your browser without a paid plan or watermarks from us.
Processing is designed to happen locally in your browser whenever possible. PDF bytes are processed in the browser whenever possible so drafts and contracts stay on your device. Standard web hosting may still log technical page requests, not your file contents.
After the first visit, the Progressive Web App cache can keep many pages available offline. Tool scripts must be cached first; heavy libraries load when you open the tool.
Keep an original backup before irreversible edits like compression or permanent page deletes. Related tools appear in the sidebar if you need a neighboring workflow.
Modern Chrome, Edge, Firefox, Safari, and mobile equivalents. Some advanced file or crypto features need a recent browser version.
Limits depend on your device memory. For best results keep total size under ~80 MB and avoid dozens of large scanned PDFs at once.