Click or drag & drop PDF files
How to Use This Tool
- Select the operation you need from the three tabs: Merge PDFs, Split PDF, or Rotate Pages.
- For merging: upload two or more PDF files, reorder them using the arrow buttons if needed, then click "Merge & Download".
- For splitting: upload a PDF, enter the page ranges you want to extract (e.g. "1-3, 5, 7-9"), then click "Split & Download".
- For rotating: upload a PDF, choose whether to rotate all pages or a specific page, select the rotation angle, then click "Rotate & Download".
Common Use Cases
- Combining multiple scanned invoices or contracts into a single PDF for email submission.
- Extracting specific pages from a large report to share only the relevant section with a colleague.
- Fixing rotated scanned pages that are displayed sideways or upside down.
- Merging an unsigned signature page with a completed agreement document.
- Splitting a multi-chapter eBook into individual chapter files for easier distribution.
Frequently Asked Questions
Are my PDF files uploaded to a server?
No. All PDF processing uses the pdf-lib library running directly in your browser. Your files are never sent to any external server, ensuring complete privacy for sensitive documents.
Is there a file size or page count limit?
There is no enforced limit. Processing large PDFs (hundreds of pages or many megabytes) may take a few seconds since everything runs in the browser's JavaScript engine.
Will the PDF quality be reduced after merging or splitting?
No. pdf-lib works at the PDF structural level, copying pages as-is without re-rendering or re-compressing them. The output quality is identical to the source.
Can I merge password-protected PDFs?
Password-protected (encrypted) PDFs cannot be processed without first providing the password. If you need to merge or split encrypted PDFs, remove the password protection first using a trusted PDF application.