Merge Multiple PDFs Into One — Free & Instant
PDFTools Team
pdftools.app
Whether you're a student combining chapters, a freelancer assembling a proposal from multiple templates, or an HR professional packaging onboarding documents — merging PDFs is one of the most common document tasks there is.
Why merging matters
Sending five separate PDFs is unprofessional and inconvenient for the recipient. A single, unified document is easier to read, easier to print, and easier to file. Many submission portals also only accept a single PDF file.
How PDFTools Merge works
Our merge tool uses pdf-lib to stitch PDFs together entirely in your browser:
1. Upload two or more PDF files by dragging and dropping or clicking to browse.
2. Reorder them by dragging — put your cover page first, appendix last.
3. Click "Merge PDFs" and your browser generates the combined file instantly.
4. Download the result directly to your device.
Because everything runs client-side, there's no upload queue, no file size limit imposed by a server, and no risk of your documents being stored anywhere.
Common use cases
- Students: Combine an assignment PDF, reference sheet, and plagiarism report into one submission.
- Freelancers: Merge a cover letter, portfolio pages, and pricing sheet into one proposal PDF.
- Office workers: Combine monthly invoices into a quarterly archive, or merge department reports into a single board presentation.
Give it a try — it takes under 10 seconds.