Merge PDF files
Merge multiple individual PDF files into a single unified document.
PDF Tools
Local browser processing only. Files never leave your device. Merging and extraction only (no guaranteed sanitization).
Limits: 1 to 12 files, max 20MB per file, max 40MB combined, up to 200 pages. Images must be JPG or PNG.
Interactive forms, annotations, and digital signatures may not be retained. Please inspect the exported file and keep the original.
No files selected.
All files are processed strictly inside your browser memory and are never uploaded to any server.
How to use
- Upload the PDF documents you want to combine.
- Arrange items in the file list to the desired document order.
- Download the merged single PDF document.
Limits & Specifications
Up to 12 PDF files, max 20MB per file, 40MB combined total, max 200 pages aggregate. Password-protected PDFs are not supported; does not compress files.
Illustrative Example
Example (Illustrative): Merging a separate PDF cover sheet with a two-page project proposal into one file.
Frequently Asked Questions
Can password-protected PDF files be merged?
No. Encrypted and password-locked PDFs cannot be parsed or decrypted by this client-side utility.
Is selectable text preserved in the merged document?
Yes. Existing vector text layers and structural streams are retained during page concatenation.