Merge 2 PDF Files into One - Free Online Tool
Combine two separate PDF documents into a single organized PDF file instantly. Reorder pages with drag & drop, 100% private in browser.
Quick Answer & Calculation Summary
Calculated Result
1 PDF
Two separate PDF documents are merged into a single cohesive document with intact formatting.
Mathematical Formula (PDF Document Concatenation & Catalog Assembly):
Toplam Belge = PDF_1(Sayfa 1..N) + PDF_2(Sayfa 1..M)Step-by-Step Resolution
- 1Parse cross-reference tables (xref) and object trees from both PDF files.
- 2Re-index and assign unique object IDs based on the chosen user page sequence.
- 3Construct a new unified Root Catalog and Pages tree, then serialize the final document.
Live & Interactive Calculator
The tool below has been pre-filled with this scenario's values. You can modify any number to calculate new results instantly.
Drop PDF files here to merge
Processed 100% locally in browser memory
MAX 50MB•Client-Side Engine
Frequently Asked Questions
Can I change the order of files before merging?
Yes, intuitive drag-and-drop handles allow you to set the exact document sequence.