Merge PDF

What Does Merging PDFs Mean?

Merging PDFs combines two or more separate PDF files into a single document. This is useful when you need to submit multiple scanned pages as one file, consolidate reports, or assemble a portfolio. Our tool preserves the page order you set and maintains the formatting of each original document.

How Do I Merge PDF Files Online for Free?

Click the upload area or drag and drop multiple PDF files onto the page. Reorder them by dragging if needed, then click the Merge button. The combined PDF is generated entirely in your browser using the pdf-lib library — nothing is uploaded to a server. Once complete, download your merged file with a single click. There are no limits on the number of files or total page count.

Can I Rearrange Pages Before Merging?

Yes. After adding your files, you can drag them into any order before merging. Each file's pages will appear in the merged document in the sequence you choose. This gives you full control over the final document structure without needing desktop software like Adobe Acrobat.

Is My Data Private When Merging PDFs Here?

Completely. All processing happens locally on your device. Your PDF files are read by JavaScript in the browser, combined in memory, and the result is offered as a download. No file data is ever sent over the internet, making this a safe choice for sensitive or confidential documents.

Can I Merge Password-Protected PDFs?

The tool can process PDFs that are encrypted but allow copying. However, PDFs with strict access restrictions may not be mergeable without the owner password. If you receive an error, check whether the PDF has password protection and remove it first using the original application that created the document.