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Merge PDFs

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Drop your PDFs here

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Total Size 0 MB
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Merge Complete!
Successfully merged {count} files
Files Merged-
Total Pages-
Final Size-

How to Use

1

Upload your PDFs

Upload multiple PDF files

2

Reorder files

Reorder by dragging or using sort buttons

3

Configure & merge

Configure output page size if needed

Pro Tips

✓

Tip 1

Files merge in the order shown

✓

Tip 2

Drag the handle to reorder

✓

Tip 3

Natural sorting works like Windows

Continue with Workflow

Select a workflow to continue

Workflow Current Step: 1

Merge PDFs Online Free - Combine PDF Documents

Combine multiple PDF files into a single document quickly and easily. Our free tool lets you merge PDFs, rearrange pages, and create professional documents without installing any software.

PDF Merger Features

📎

Drag and Drop

Add files easily by dragging them to the upload area. Supports multiple files simultaneously.

🔄

Reorder Files

Organize document order by dragging thumbnails. Sort alphabetically with one click.

📐

Multiple Page Sizes

Keep original sizes or normalize to A4, A3, or Letter. Perfect for mixed documents.

🔒

Secure Processing

Your files are processed securely. Documents are automatically deleted after download.

When to Use the PDF Merger?

  • Combine book chapters or manual sections into a single file
  • Merge invoices or accounting documents from the same period
  • Create portfolios by combining multiple works
  • Merge contracts with their corresponding annexes
  • Consolidate monthly reports into annual documents

Frequently Asked Questions

How many PDFs can I merge at once?

You can merge up to 20 PDF files in a single operation. The total size should not exceed 100MB.

Is the quality of original documents preserved?

Yes. The merging process maintains the original quality of all elements: text, images, fonts, and formatting.

Can I rearrange the page order?

Yes. Before merging, you can drag files to change their order. You can also sort alphabetically A-Z or Z-A.

What if PDFs have different page sizes?

You can choose to keep original sizes or normalize everything to a standard format (A4, A3, Letter).

Merge PDFs Online Free - Combine PDF Documents

Combine multiple PDF files into a single document quickly and easily. Our free tool lets you merge PDFs, rearrange pages, and create professional documents without installing any software.

PDF Merger Features

Drag and Drop

Add files easily by dragging them to the upload area. Supports multiple files simultaneously.

Reorder Files

Organize document order by dragging thumbnails. Sort alphabetically with one click.

Multiple Page Sizes

Keep original sizes or normalize to A4, A3, or Letter. Perfect for mixed documents.

Secure Processing

Your files are processed securely. Documents are automatically deleted after download.

Preserve Bookmarks and Links

Internal bookmarks, table-of-contents links, and hyperlinks from each document are preserved in the merged output.

Works on Any Device

Use the merger from your desktop, tablet, or phone. The responsive interface adapts to any screen size.

When to Use the PDF Merger?

How Does PDF Merging Work?

Our PDF merger reads the internal structure of each uploaded file and reconstructs them into a single document while preserving every element. Page content streams, embedded fonts, images, bookmarks, and annotations are all carried over faithfully. The tool handles mixed page sizes and orientations seamlessly, and you can optionally normalize all pages to a single format like A4 or Letter. Files are processed in the exact order you arrange them in the interface, giving you full control over the final document structure. The merge operation works at the PDF object level, meaning there is zero quality loss. The tool can handle scanned pages, vector graphics, interactive forms, and even layered PDFs. Processing completes in seconds, and the final file is ready for immediate download.

Security is built into every step of the merge process. Files are uploaded over TLS-encrypted connections, processed in an isolated server environment, and permanently deleted after download. We have no access to your document contents and comply fully with GDPR data protection regulations.

Pro Tip: Organize Before Merging

Use the drag-and-drop interface to arrange files in the exact order you want. For large projects, rename files with numeric prefixes (01_, 02_, etc.) before uploading, then use the A-Z sort button to order them instantly.

Frequently Asked Questions

How many PDFs can I merge at once?

You can merge up to 20 PDF files in a single operation. The total size should not exceed 100MB.

Is the quality of original documents preserved?

Yes. The merging process maintains the original quality of all elements: text, images, fonts, and formatting.

Can I rearrange the page order?

Yes. Before merging, you can drag files to change their order. You can also sort alphabetically A-Z or Z-A.

What if PDFs have different page sizes?

You can choose to keep original sizes or normalize everything to a standard format (A4, A3, Letter).

Is it safe to merge PDFs online?

Yes. Your files are transferred over an encrypted HTTPS connection and processed on secure servers. They are automatically deleted after you download the merged document. We never read, store, or share your content.

Can I merge PDFs with different page orientations?

Absolutely. The tool preserves the original orientation of each page. If one PDF is portrait and another is landscape, both will appear correctly in the final merged document.

Do I need to create an account to merge PDFs?

No. The merger is completely free and requires no registration. Simply upload your files, arrange them, and download the result.

Can I merge scanned PDFs with regular PDFs?

Yes. The merger works with any valid PDF regardless of whether it contains scanned images, editable text, forms, or a combination of all three.

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