Merge PDF

Combine multiple PDF files into a single document. Upload PDFs, reorder them, merge instantly. Free, private, all processed in your browser.

About Merge PDF

Combine multiple PDF files into a single document. Drag and drop to reorder pages before merging. All processing happens in your browser using pdf-lib — your files never leave your device.

Multi-file Upload

Select as many PDFs as you need. Reorder them with drag handles before merging.

Page Order Control

Move pages up or down to arrange them exactly how you want in the final document.

100% Browser-based

No server uploads. PDFs are merged directly in your browser using the pdf-lib library.

Instant Download

Get your merged PDF immediately. No waiting, no email required, no account needed.

📋 Common Use Cases

Combine Business Reports

Merge quarterly reports, invoices, or presentation decks into one cohesive document for client distribution or archival.

Unify Scanned Documents

Join multiple scanned contracts or receipts into a single PDF for cleaner record-keeping and easier sharing.

Assemble Ebook Chapters

Combine individual chapter PDFs into a complete ebook or manuscript ready for publication and distribution.

Bundle Legal Filings

Merge court documents, exhibits, and affidavits into one consolidated submission package for legal proceedings.

🪜 How to Use This Tool

Upload PDF files
Drag and drop or browse to select the PDF files you want to combine. You can add up to 10 files at once.

Reorder pages
Drag thumbnails to rearrange the order of files and individual pages to match your desired sequence.

Merge into one PDF
Click the merge button to combine all files into a single PDF document with preserved formatting and quality.

Download your file
Preview the merged result, then download the combined PDF instantly — no account, no email required.

Frequently Asked Questions

Is this PDF tool really free?▼

Yes. Every PDF tool on iluv.tools is completely free. No signup, no account, no payment. Everything runs in your browser.

Are my PDF files uploaded to a server?▼

No. All PDF processing happens locally in your browser using the pdf-lib and PDF.js libraries. Your files never leave your device.

Do these PDF tools work offline?▼

Basic PDF tools (merge, split, compress, rotate, sign, watermark, protect, unlock, add page numbers, edit metadata, flatten, grayscale, crop, delete pages) work completely offline after the page loads. AI-powered tools like smart compression and PDF to Word require an internet connection.

Is there a file size limit?▼

Browser-based tools handle files up to ~100MB smoothly. Larger files may be slower depending on your device. For very large PDFs, try splitting them first, processing the parts, then merging.

Can I use these on mobile?▼

Yes. All PDF tools work on mobile browsers (iOS Safari, Android Chrome). Desktop is recommended for large files, but everything is functional on mobile.