Merge PDF Files
Combine multiple PDF documents into a single file. Supports Interleave merging and advanced formatting.
Click or drag files here
Drop PDFs to merge
Supported formats: PDF
📄 Upload files to get started
Files will be merged one after another in the order listed.
Rotation
Combine PDF Files with Professional Tools
PlatinumPDF Merge PDF goes beyond simple file joining. It's a complete document assembly station that lives in your browser. Whether you need to combine legal contracts, merge odd/even pages from a scanner, or compile a student thesis, our tool gives you granular control. You can reorder pages, rotate individual files, and even generate a clickable Table of Contents automatically based on your filenames. Best of all? It's completely private. Your documents are merged locally on your device and are never uploaded to a server.
Powerful Features
Drag & Drop Reordering
Visual sorting makes organizations easy. Just drag your files into the perfect order before merging.
Interleave Merging
Perfect for scanners. Merge two files (e.g., File A: 1,3,5 and File B: 2,4,6) into one sequential document (1,2,3...).
Auto Table of Contents
Generate a clickable index page at the start of your merged PDF using your filenames as bookmarks.
100% Private
We use WebAssembly to process files in your browser. No data transfer means military-grade privacy.
Format & Number
Add unified page numbers, headers, or footers to your entire merged document automatically.
Fast & Unlimited
Merge dozens of files at once. There are no artificial limits on file count or size.
How to Merge PDFs (Step-by-Step)
Upload Files
Drag and drop the PDF files you want to combine. You can add them all at once.
Arrange Order
Drag the file thumbnails to set the correct playback order. Use 'Interleave' if mixing front/back scans.
Enhance (Optional)
Toggle 'Create Table of Contents' or add page numbers in the settings sidebar.
Merge & Preview
Click 'Merge & Preview' to generate the new file instantly.
Download
Review the result in the viewer and save your new combined PDF.
Who Can Benefit? (15+ Use Cases)
Business & Legal
- Lawyers: Compile affidavits, evidence, and court forms into a single "Case Brief" PDF.
- Accountants: Merge 12 monthly bank statements into one "Yearly Financial Record" file.
- Contractors: Combine project proposals, blueprints, and cost estimates into one client packet.
- HR Departments: Collate resumes, cover letters, and portfolios for candidate review.
- Board Members: Merge various department reports into a single "Board Meeting Pack".
- Real Estate: Combine property deed, insurance, and inspection reports into a "Closing Binder".
- Freelancers: Merge signed contract + scope of work + invoice for clean record keeping.
Academic & Personal
- Students: Combine all chapter readings and lecture notes into one "Exam Prep" file.
- Researchers: Merge separate journal articles on a topic into a personal anthology.
- Authors: Join 20 separate chapter PDFs into a manuscript draft for printing.
- Job Applicants: Merge Resume + Cover Letter + References into one file for easy emailing.
- Travelers: Combine flight tickets, hotel bookings, and attraction passes into a "Trip Itinerary".
- Musicians: Create a "Set List" PDF by merging sheet music for 10 songs.
- Genealogists: Compile scanned family records into a digital family tree book.
- Dungeons & Dragons: Merge character sheets and spell lists into a player handbook.
Real-World Scenarios
Scenario 1: The Scanned Document Fix
Input: "Front_Pages.pdf" (Pages 1,3,5) and "Back_Pages.pdf" (Pages 2,4,6) from a non-duplex scanner.
Action: User selects "Interleave Mode" in Merge Options.
Output: A perfect sequential document (Page 1, 2, 3, 4, 5, 6).
Scenario 2: The Digital eBook
Input: 5 PDFs named "Chapter 1", "Chapter 2", etc.
Action: User merges them and checks "Create Table of Contents".
Output: A single book where the first page has clickable links to each chapter start.
Scenario 3: The Job Application
Input: Resume.pdf (Portrait) and Portfolio.pdf (Landscape).
Action: User merges them. The tool handles mixed orientations automatically.
Output: A professional application packet that respects the layout of each section.
Frequently Asked Questions
Is there a limit to how many files I can merge?
No, there is no hard limit. You can upload and merge as many PDF files as your device's memory can handle. Merging 50+ files is common and fast.
Are my files uploaded to the cloud?
No. PlatinumPDF is a privacy-first tool. All merging happens locally on your computer using your browser's power. We never see your files.
Can I merge PDF and Image files together?
Currently this tool is for PDFs only. However, you can use our 'Image to PDF' tool first to convert your images, and then merge the resulting PDFs here.
How does Interleave mode work?
Interleave mode takes page 1 from File A, then page 1 from File B, then page 2 from File A, etc. It's designed for combining separate scans of front-sides and back-sides of documents.
Can I reorder pages inside a specific file before merging?
This tool reorders entire files. To reorder specific pages within a file, we recommend using our 'Reorder PDF' tool first, or 'Split' the file, then merge.
Will my form data be preserved?
By default, yes. However, if you want to 'bake in' the form data so it's no longer editable, you can enable the 'Flatten Forms' option in settings.
Can I add page numbers to the final merged file?
Yes! Check the 'Page Numbers' section in the sidebar. You can add continuous page numbering (1 to N) across the entire new document.