Merge PDF
NewTrending 🔥Combine multiple PDF files into one document
How to Use Merge PDF
- 1Upload two or more PDF files
- 2Reorder by clicking the up/down arrows
- 3Click Merge PDFs
- 4Download the combined document
About Merge PDF
Merge PDF lets you combine multiple PDF documents into one in seconds. Upload your files, drag to reorder, and click Merge. Everything runs in your browser — no file ever leaves your device.
Key Features of Merge PDF
- Fast and accurate Merge Pdf processing
- No installation required — works in browser
- Free to use with no limitations
- Privacy-focused — data never leaves your device
- Mobile and desktop compatible
- Instant results with live preview
- Download the merged PDF with one click
Supported Formats
Input Formats
Output Formats
Encrypted PDFs must be decrypted with the Unlock PDF tool before merging.
Common Use Cases
- Professional Merge Pdf tasks
- Quick everyday calculations
- Educational purposes and learning
- Business and workplace productivity
- Personal projects and hobbies
- Creating a single PDF from multiple signed contracts
Troubleshooting
Unexpected results
Solution
Double-check your input format and ensure all required fields are filled correctly.
Tool not working
Solution
Clear browser cache and refresh. Ensure JavaScript is enabled.
Cannot merge a password-protected PDF
Solution
Use the Unlock PDF tool to remove the password first, then upload the unlocked file to merge.
Frequently Asked Questions
How many PDFs can I merge?
There is no hard limit. All processing is done in your browser.
Is my data safe?
Yes. All processing happens in your browser using pdf-lib. No file is ever uploaded.
Will the merged PDF preserve hyperlinks?
Yes. pdf-lib preserves internal and external hyperlinks, bookmarks, images, and fonts from the original documents.
Can I rearrange the order of pages?
You can rearrange the order of the input PDF files before merging. For page-level reordering within a PDF, use the Split PDF tool first.
Is there a file size limit?
No server-side limit. The practical limit depends on available browser memory. Files up to several hundred MB generally work fine.