Merge PDF
Merge multiple PDF files into one PDF locally in your browser.
PDF processing stays in your browser. Your PDF is not uploaded for processing.
Source PDFs
2–10 PDFs; 10 MiB per file, 25 MiB and 100 pages combined. You can add more files after choosing the first batch.
How to use
- Choose 2–10 PDFs. You can add more PDFs after the first selection.
- Arrange the documents with Move up and Move down. Each document's pages keep their original order.
- Select Merge PDF.
- Review the verified page count and size, then download the merged file.
Document and page order
Documents are joined in the displayed order, with all pages from the first PDF followed by all pages from the next PDF. Selecting the same local file twice intentionally includes it twice. This tool does not compress the documents.
PDF limits and unsupported sources
Choose 2–10 PDFs, each no larger than 10 MiB. Together they must be at most 25 MiB and 100 pages. A rejected selection batch leaves your accepted list unchanged. Encrypted or password-protected PDFs are unsupported; malformed PDFs cannot be safely processed.
Static-page fidelity
The supported boundary is static pages: page order, dimensions, rotation, visible content and extractable text. Preservation of metadata, bookmarks, attachments, complex interactive forms, accessibility structure and digital signatures or their cryptographic validity is not guaranteed.
Local PDF processing
PDF processing happens locally in the browser; your PDF is not uploaded for processing. The site still loads ordinary application assets and may use separately enabled site observability. Keep the page open until processing and download finish.