Zadein Logo
Zadein
ToolsPricing
Add to Chrome
Zadein Logo
Zadein
ToolsPricing
Add to Chrome

About the PDF Merger

The Zadein PDF Merger combines multiple PDF files into a single document. You can arrange the order of files before merging, making it straightforward to assemble reports, contracts, or multi-part documents into one coherent file.

How to use

  1. 1Upload two or more PDF files using the file picker.
  2. 2Drag to reorder the files if needed to set the correct sequence.
  3. 3Click Merge and download the combined PDF.

Common use cases

  • Combine multiple invoice pages into a single PDF for accounting.
  • Merge separate chapters or sections of a document into one file.
  • Assemble a portfolio of PDF attachments for a job application.
  • Join scanned pages that were saved as separate files.

Frequently asked questions

How many PDFs can I merge at once?

You can merge multiple files in a single operation. Very large files may take longer to process.

Does merging affect the quality of the PDF content?

No. The content of each file is preserved exactly as it was. Merging only combines the pages into one document.

Can I merge password-protected PDFs?

Password-protected PDFs cannot be merged unless the password protection is removed first. Use the Unlock PDF tool before merging.