How does AADDYY's AI PDF Merge work?

Simply upload 2 to 10 PDF files using the drag-and-drop zone or file browser, then click 'Merge PDFs'. The server combines your files in the order they were added and returns a single merged PDF that downloads automatically to your device.

How many PDF files can I merge at once?

You can merge between 2 and 10 PDF files in a single request. Each file must be a valid PDF and no larger than 20MB. The tool enforces these limits client-side before upload so you get instant feedback.

What file formats are supported?

Only PDF files are accepted (application/pdf or .pdf extension). Files are validated both in the browser before upload and on the server. Other formats such as Word, images, or PowerPoint are not supported at this time.

How much does it cost to merge PDFs?

AADDYY's AI PDF Merge is completely free. No credits are deducted, no subscription is required, and there are no hidden fees — just upload your PDFs and merge.

Is my uploaded PDF data kept private?

Your uploaded files are processed securely on our servers solely for the purpose of merging. They are not stored permanently or used for training. The merged output is returned directly as a download and no copies are retained after processing.

What happens if the merge fails?

If a file is corrupted or the server encounters an error, you will see a clear error message. No credits are deducted for failed requests. You can try again with a different set of files or check that your PDFs are not password-protected.

AI PDF Merge

AADDYY's AI PDF Merge combines up to 10 PDFs into one file instantly. Completely free — no credits, no subscription required.

Upload your files to begin.

How it Works

Upload your PDFs

Drag and drop 2–10 PDF files into the uploader. Each file can be up to 20MB. Rearrange the order by dragging.

Arrange and confirm

Review the file order — this will be the page sequence in the merged document. Remove any files you don't need.

Download merged PDF

Click Merge and get your combined PDF instantly. The download starts automatically — no email required.

Use Cases

Document compilation

Combine invoices, contracts, and supporting documents into a single PDF for email attachments or filing.

Report assembly

Merge individual report sections, charts, and appendices into one cohesive document for stakeholders.

Application packages

Combine resumes, cover letters, transcripts, and certificates into one PDF for job or school applications.

eBook creation

Merge chapter PDFs into a complete eBook or manual for distribution.

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Questions.

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