100% Free Browser Document Tool

Merge PDF

Combine multiple PDF files into a single organized document in any sequence.

Merge PDF Workspace
100% In-Browser Privacy

Technical Specifications & Limits

Supported Formats.pdf
Maximum Size Limit100 MB
Privacy Mode100% In-Browser (Private)

How to use Merge PDF

Follow three simple steps to process your document right inside your browser.

1

Upload PDF Files

Select multiple PDF files from your computer or mobile device, or drag them into the upload box.

2

Reorder & Arrange

Drag and drop document cards or thumbnails to arrange the exact page and file sequence you need.

3

Merge & Save

Click Merge PDF to assemble all pages into a single unified file, then download the result immediately.

About Merge PDF

Combine separate PDF documents into a single, cohesive file effortlessly. Whether assembling multi-part legal contracts, combining monthly financial statements, merging project reports, or bundling job application materials (resume, cover letter, references), AviraTools allows you to arrange files in your exact sequence before binding them into one download. The client-side PDF engine ensures instant performance and maximum privacy.

AviraPDF is engineered to process your documents at hardware speed without sending files across the internet. By executing JavaScript and WebAssembly memory streams locally, you avoid bandwidth delays and maintain complete control over your sensitive documents.

Frequently Asked Questions about Merge PDF

Get quick answers to common questions about using this tool.

Yes, our merge engine preserves original page dimensions (A4, Letter, Legal, custom sizes) seamlessly within the merged output.

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