Merge PDF
Combine multiple PDF files into one document
Selected files
0
Total pages
0
Output
merged.pdf
Upload PDF files
Select multiple PDFs to merge
Merge Settings
Quick order
Tips
1. Put the cover file first.
2. Use arrows in the file list to adjust order.
3. Merge starts when at least 2 files are selected.
Related Tools
Split PDF
Extract specific pages from a PDF file
Compress PDF
Reduce PDF file size while maintaining quality
PDF to Image
Convert PDF pages to PNG or JPEG images
Image to PDF
Create a PDF document from multiple images
Sign PDF
Add your signature to a PDF document
Rotate PDF
Rotate PDF pages by 90°, 180°, or 270°
How to Use
Upload Your File
Drag and drop your file or click to browse. Your file stays in your browser.
Adjust Settings
Configure options to get exactly the result you need.
Download Result
Process and download your file instantly — no waiting, no server upload.
Why Use This Tool
100% Free
No hidden costs, no premium tiers — every feature is free.
No Installation
Runs entirely in your browser. No software to download or install.
Private & Secure
Your data never leaves your device. Nothing is uploaded to any server.
Works on Mobile
Fully responsive — use on your phone, tablet, or desktop.
Your Files Stay Private
This tool processes your files entirely in your browser. Nothing is uploaded to any server — your data never leaves your device.
- No server upload — 100% client-side processing
- No data stored — files are discarded when you close the tab
- No account required — use instantly without signing up
How to Merge PDFs: Combine Multiple Files Into One Document
Key Points
- Merging PDFs preserves original formatting, fonts, and images from each source file
- Drag-and-drop reordering lets you control the final page sequence before merging
- All processing happens in your browser—no files are uploaded to any server
Combining multiple PDF files into a single document is one of the most common document tasks. Whether you're assembling a report from separate chapters, merging scanned receipts for expense reporting, or compiling application materials, a reliable PDF merger saves time and keeps everything organized in one file.
100%
Client-side · No upload required
Common Use Cases
Business Reports & Proposals
Combine a cover page, executive summary, financial tables, and appendices into a single professional document for clients or stakeholders.
Job Applications & Academic Submissions
Merge your resume, cover letter, transcripts, and certificates into one PDF for online application portals that accept a single file upload.
Invoice & Receipt Compilation
Gather monthly invoices or travel receipts into a single file for accounting, expense reimbursement, or tax filing purposes.
Legal & Contract Documents
Assemble contract pages, addenda, and signature pages into one complete document for filing or distribution.
Merge Tips
Arrange files in the desired order before merging—drag and drop to reorder for the correct page sequence.
Check that all source PDFs are not password-protected; unlock them first if needed.
After merging, scroll through the result to verify all pages transferred correctly, especially charts and images.
For very large merges (50+ pages), allow a few extra seconds for browser processing to complete.
All PDF merging is performed locally in your browser using pdf-lib. No files are uploaded to any server, ensuring complete privacy of your documents.