Merge PDF Online
Use this free merge PDF tool to combine multiple files into one document in your browser. Reorder them, merge privately, and download without signing up.
Related tools
More browser-based tools for this workflow.
What this tool does
Merge multiple PDF files into a single document. Drag to reorder, then download. Free, secure, and works entirely in your browser.
This online PDF merger copies pages into one downloadable document while preserving selectable text, embedded fonts, and links. Arrange files in the order you need for reports, applications, records, or client handoffs.
Key features
- Combine many PDFs into a single document — the practical ceiling is your device's available memory, not an arbitrary cap
- Drag-and-drop reordering with up/down arrows for precise sequencing
- Streams pages directly with pdf-lib — original text layer, embedded fonts, and link annotations stay intact
- Honest progress indicator so you can see exactly which file is being merged
- Zero upload: every page is assembled inside this browser tab and discarded when you close it
Common use cases
- Bundling monthly invoices, receipts, or expense scans into one archive
- Combining a contract with its signed signature pages, addenda, and exhibits
- Assembling a job application: CV, cover letter, certificates, and references in one PDF
- Stitching scanned forms back together after signing or annotating individual pages
- Merging chapters, lecture notes, or research papers into a single download
Things to know
- Password-protected PDFs must be unlocked first — encrypted documents are rejected for safety
- Form fields with identical names from different files may collide and overwrite each other after merging
- Very large PDFs (hundreds of MB) can be slow on low-RAM phones and older laptops
- Output is offered as a one-time download — nothing is stored once you close the tab
How to use Merge PDF
- 01
Drop two or more PDF files into the upload area (invoices, contracts, scans, reports — any mix).
- 02
Drag rows up or down to set the final page order across the combined document.
- 03
Click Merge & Download to save one consolidated PDF; nothing is uploaded.