What is PDF Merging?

PDF merging is the process of combining multiple PDF documents into a single, unified file. This essential tool helps organize related documents, create comprehensive reports, or compile materials for presentations and submissions.

When to use PDF merging:

Report Compilation: Combine separate chapters or sections into one complete document
Project Submission: Merge multiple documents for a single upload requirement
Document Organization: Group related PDFs for easier management and sharing
Presentation Materials: Combine slides, handouts, and notes into one file
Archiving: Consolidate multiple related documents for storage
Legal Documentation: Merge contracts, addendums, and supporting documents

Key Benefits

✓ Combine unlimited PDF files
✓ Preserve original quality
✓ Select specific pages
✓ Drag-and-drop reordering
✓ 100% free and secure

How to Merge PDF Files

1

Upload PDFs

Drag and drop your PDF files or click to browse. Upload multiple files at once - there's no limit to the number of PDFs you can merge.

2

Arrange & Select

Drag files to reorder them. Choose between File Mode (merge whole files) or Page Mode (select specific pages from each PDF).

3

Download Result

Click "Merge PDFs" to process. Download your merged PDF instantly. All processing happens locally in your browser for maximum security.

Best Practices for PDF Merging

Pro Tips

Use File Mode for simple whole-document merging
Use Page Mode for custom page selection (e.g., "1-3, 5, 7-9")
Bookmarks and metadata are preserved in the merged file
Drag file handles to reorder before merging

Important Notes

All processing occurs locally - files never leave your device
No file size limits - merge as many PDFs as needed
Password-protected PDFs cannot be merged (use Decrypt PDF first)

Frequently Asked Questions

No, there are no limits. You can merge:

Unlimited number of PDF files
PDFs of any size (limited only by your device's memory)
Any combination of page sizes and orientations
Both scanned and digital PDF documents

The tool processes everything locally in your browser, so performance depends on your device's capabilities.

Yes! Our PDF merger preserves:

All bookmarks from original documents
Internal and external hyperlinks
Document metadata (author, title, etc.)
Form fields and annotations

Bookmarks from individual files are combined in the merged document, making navigation easy.

Password-protected PDFs cannot be directly merged. You need to:

First use our Decrypt PDF tool to remove password protection
Then merge the decrypted PDFs using this tool
Optionally, use Encrypt PDF to add password protection to the merged file

This security measure ensures that only authorized users can access protected documents.

Two merging modes for different needs:

File Mode: Merge entire PDF files as they are
- Best for combining complete documents
- Specify page ranges for each file (e.g., "1-5, 8, 10-12")
- Drag files to reorder them
Page Mode: Select and arrange individual pages
- Best for creating custom documents from multiple sources
- Drag individual page thumbnails to arrange order
- Perfect for presentations and custom compilations

Absolutely. We prioritize your privacy and security:

Local Processing: All merging happens in your browser - files never leave your device
No Uploads: We don't store your PDFs on any servers
No Tracking: We don't track or analyze your document content
Ad-Free: Clean interface without distractions or data collection

You can verify this by disconnecting from the internet after loading the page - the tool will still work!

Related PDF Tools

Split PDF

Extract pages into separate files

Organize PDF

Reorder, duplicate pages

Compress PDF

Reduce file size

PDF Multi Tool

All-in-one PDF editor

Merge PDFs

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