How does PDF merging work?

Our tool combines multiple PDF files by concatenating their pages in the order you specify. All content, including text, images, and formatting, is preserved in the merged document.

How many PDFs can I merge at once?

You can merge up to 20 PDF files in a single operation. Each file can be up to 50MB in size, allowing you to create comprehensive documents from multiple sources.

Can I change the order of pages in the merged PDF?

Yes! You can drag and drop both files and individual pages to arrange them in any order before merging. This gives you complete control over the final document structure.

Are bookmarks preserved when merging?

Yes, we preserve bookmarks from all source PDFs and organize them hierarchically in the merged document. This maintains navigation structure and document organization.

Will there be any quality loss when merging PDFs?

No, merging PDFs doesn't compress or alter the content. All text, images, and formatting remain exactly as they were in the original files.

PDFyogi

Merge PDF

Join multiple PDF documents into a single file. Arrange pages in any order and create comprehensive documents.

or Drag & drop files here

Max 100 files•Max file size: 100MB

Supported formats: .pdf, application/pdf

Professional PDF Merger Tool

Combine multiple PDF documents into a single file with complete control over page order and structure. Our browser-based merger uses WebAssembly technology to process files securely on your device, preserving all content including bookmarks, hyperlinks, and formatting.

Key Features:

✓Merge up to 20 PDF files in a single operation
✓Drag-and-drop reordering for complete page control
✓Preserves bookmarks, hyperlinks, and document structure
✓Preview all pages before merging
✓100% client-side processing for complete privacy
✓No quality loss during merging process

How to merge PDF files:

Click "Select PDF Files" or drag and drop multiple PDF files
Drag and drop files to arrange them in your desired order
Preview pages and reorder individual pages if needed
Click "Merge PDFs" to combine all files into one document
Download your merged PDF document

Your Privacy is Protected

All conversions happen locally in your browser. Your files never leave your device and are automatically deleted when you close this page.

Frequently Asked Questions

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All tools are completely free and process files locally in your browser for maximum privacy.

Your Privacy is Our Priority

Unlike other PDF tools, we process your files directly in your browser using WebAssembly technology. This means your sensitive documents never leave your device.

Browser Processing

Processing happens in your browser

No File Uploads

No files uploaded to our servers

No Storage

We don't permanently store your files

Complete Privacy

Your files never leave your device during processing

100% Privacy Guarantee

We use cutting-edge WebAssembly technology to process your PDFs entirely within your browser. No uploads to our servers, no data collection, no privacy concerns. Just pure, local processing power.

Read our Privacy Policy

How Our Privacy-First Technology Works

WebAssembly Processing

We use WebAssembly (WASM) to run PDF processing libraries directly in your browser, eliminating the need to upload files to external servers.

Local Storage Only

Files are temporarily stored in your browser's memory during processing and automatically cleared when you close the tab or complete the task.

No Data Collection

We don't track, store, or analyze your file contents. Our analytics only measure tool usage patterns, not personal data.

GDPR Compliant

Our privacy-first approach means we're automatically compliant with GDPR, CCPA, and other privacy regulations worldwide.

Merge PDF Files Online - Combine PDFs for Free | PDFyogi