PDF Tools

PDF Merger

Combine multiple PDF files into one document. Drag to reorder, remove files individually, and download the merged result — all privately in your browser.

📄

Drop PDFs here or click to browse

Add two or more PDF files to merge them

🔒 Files never leave your device

The Complete Guide to Merging PDF Files Online

Merging PDF files is one of the most common document tasks for professionals, students, and businesses. Whether you're combining report chapters, assembling a job application package, collating scanned pages, or creating a PDF portfolio, a reliable merger saves time and keeps your documents organized. Our free browser-based PDF merger requires no downloads, no accounts, and no file uploads — your documents stay 100% private on your device.

Common PDF Merging Use Cases

Use Case PDFs to Merge Benefit
Job Application Resume + Cover Letter + Certificates One file to attach, professional impression
Report Assembly Executive Summary + Chapters + Appendix Single document for sharing/printing
Invoice Batch Monthly invoices (Jan, Feb, Mar...) Easier accounting and record-keeping
Legal Documents Contract + Addenda + Exhibits Preserves all pages in correct order
Photo Portfolio Multiple image-converted PDFs One PDF for client presentations
Research Paper Main text + References + Figures Single submission-ready document

How to Merge PDFs — Step by Step

1. Select your files: Click "Select PDF Files" or drag and drop multiple PDFs into the upload zone. 2. Reorder if needed: Use the ↑ and ↓ buttons to arrange files in the exact order you want. 3. Name your output: Optionally customize the filename for the merged PDF. 4. Merge & Download: Click "Merge PDFs" and your browser processes the files locally — no waiting for uploads. The download starts automatically.

Frequently Asked Questions

This tool combines multiple PDF files into a single document entirely in your browser. Upload two or more PDFs, reorder them if needed using the Move Up / Move Down buttons, then click Merge to download a combined PDF. Nothing is uploaded to any server.
There is no hard limit set by our tool. Processing happens in your browser, so practical limits depend on your device's RAM. Most modern computers handle files up to 200 MB each without any issues.
No. All processing happens locally using the PDF-lib JavaScript library. Your PDFs never leave your device, ensuring complete privacy — perfect for confidential or sensitive documents.
Yes! After adding your files, use the ↑ Move Up and ↓ Move Down buttons on each file to set the exact order you want before merging. You can also remove individual files from the list.
Password-protected PDFs cannot be merged unless decrypted first. Use our PDF Tools page to remove encryption, then merge the unlocked files.
Yes! You can merge as many PDFs as you need in a single operation. Simply select all the files at once or add them one by one. All files will be combined in the order shown in the list.
No. Our tool uses PDF-lib to copy pages at the binary level, preserving fonts, images, vector graphics, annotations, and form fields at full quality — no re-rendering or compression.