How to Merge PDF Files: Complete Guide

Merging PDF files is one of the most common document operations. Whether you need to combine invoices, reports, or scanned pages into a single document, dokk.ai makes it simple and secure.

Why Merge PDFs?

There are many reasons to combine multiple PDFs into one file:

• Organization — Keep related documents together in a single file
• Sharing — Send one file instead of multiple attachments
• Archival — Create yearly archives of monthly reports or invoices
• Portfolios — Combine individual pieces into a professional portfolio

Step-by-Step: Merge PDFs with dokk.ai

1. Go to the at dokk.ai
2. Upload two or more PDF files by dragging them into the upload area
3. Reorder files by dragging them into the desired sequence
4. Click Merge to combine all files into a single PDF
5. Download your merged document

Tips for Better Results

For the best results when merging PDFs, make sure all source files are not password-protected. If they are, use the first.

You can also use the to rearrange individual pages after merging.

File Size Considerations

Merged files can be large. After merging, consider using the to reduce file size without losing quality.

Plan	Max File Size	Max Files
Free	10 MB	10
Premium	500 MB	Unlimited
Premium+	500 MB	Unlimited

Common Use Cases

• Combining scanned pages into a single document
• Merging monthly invoices into a yearly archive
• Creating a portfolio from separate PDF files
• Assembling legal documents from multiple sources

Frequently Asked Questions

Does merging preserve bookmarks?

Yes, dokk.ai preserves bookmarks from all source documents. They are combined into a single outline in the merged PDF.

Is my data secure?

All files are encrypted in transit and automatically deleted within 2 hours of processing. We never access or read your document content.