PDF Merge

How PDF Merging Works

This tool reads the page structure of each uploaded PDF and combines them into one new PDF file, preserving every page from every source file in the order you arrange them — no content is altered or lost from the original files, they're simply combined into a single continuous document. Processing happens locally in your browser, so your files aren't uploaded to a server.

A Worked Example

Merging a 3-page cover letter PDF, a 5-page resume PDF, and a 2-page certificate PDF, in that order, produces a single 10-page PDF where pages 1–3 are the cover letter, pages 4–8 are the resume, and pages 9–10 are the certificate — exactly matching the original page order and content of each source file, just combined into one document.

Common Mistakes to Watch For

• Uploading files in the wrong order. The final merged order matches your upload/arrangement order — double-check the sequence before merging, especially for multi-part application documents.
• Merging password-protected PDFs without unlocking first. An encrypted or password-protected source PDF may not merge correctly — remove protection first if you have the password and permission to do so.

When This Tool Helps — and When It Isn't Enough

Useful for combining application documents, reports, or scanned pages into one file for easier sharing. For merging PDFs with conflicting page sizes or orientations, review the merged output to ensure formatting still looks correct across the combined document.

File Size & Browser Notes

There's no fixed limit on how many PDFs you can merge in one go — the practical limit is your device's available memory when handling very large combined documents.