PDF Merger
Merge multiple PDF files into one document instantly. Drag to reorder, then download. Free and secure.
How to Use PDF Merger
Upload your PDF files
Click 'Add PDFs' or drag and drop multiple PDF files onto the upload area. You can add up to 5 files (free plan).
Reorder as needed
Drag the PDF thumbnails to arrange them in your desired order. The final document will follow this sequence.
Merge your PDFs
Click 'Merge PDFs'. The files are combined in your browser — no server processing required.
Download merged PDF
Download your merged PDF file. The file is named 'merged.pdf' by default — you can rename it after downloading.
About PDF Merger
Combining multiple PDF documents into a single file is an everyday necessity for professionals, students, and businesses. Whether you're consolidating project reports, merging invoices, combining research papers, or assembling a portfolio — our PDF merger makes the process effortless.
Unlike many PDF tools that require you to install software or create accounts, ToolForge AI's PDF Merger works directly in your browser. Your PDFs are processed using PDF.js and browser APIs — they never leave your device.
Common PDF merging scenarios
*Business professionals* frequently need to merge contracts, appendices, and signature pages. Instead of emailing multiple files, merging creates a single, professional document that's easy to share and archive.
*Students and academics* often combine research papers, assignments, and references into comprehensive documents for submission.
*Legal and HR teams* regularly merge application materials, offer letters, and onboarding forms into consolidated employee files.
*Freelancers and creatives* combine portfolio pieces, proposals, and contracts into unified client packages.
Reordering pages before merging A key feature of our merger is the drag-and-drop reordering interface. Before downloading your merged PDF, you can drag individual PDF thumbnails to arrange them in your preferred order. This eliminates the need to merge, check order, then re-merge.
File size and page limits Free users can merge up to 5 PDF files with a total size of 50MB. Pro users get unlimited merges with files up to 100MB each, plus priority processing.
Key Features
Drag-to-Reorder
Intuitively arrange PDF order before merging.
Page Previews
See thumbnail previews of each PDF before merging.
Secure Processing
Files processed locally — never uploaded to servers.
Multiple Files
Merge up to 5 PDFs at once on the free plan.
Instant Download
Merged PDF ready in seconds.
Original Quality
Merged PDF preserves original resolution and formatting.
Benefits
- Share a single professional document instead of multiple files
- Keep all related documents organized in one file
- Reduce email attachment count and improve deliverability
- Create comprehensive portfolios and presentation packages
- Simplify document management and archiving
Who Uses This Tool
- Combining invoices into monthly billing reports
- Merging research papers and references for academic submission
- Assembling legal documents and signature pages
- Creating client-ready portfolio packages
- Combining multiple reports into board presentations
Pro Tips for Best Results
- 1Use the page preview thumbnails to verify document order before merging
- 2For large PDF projects, merge in batches of 5 and then merge the results
- 3Check the total page count of your merged document to ensure nothing was missed
- 4Compress your merged PDF using our Image Compressor if the file size is too large
100% Private
Files never leave your browser
Lightning Fast
Instant browser-side processing
No Account Needed
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