Online PDF Merger

Merge PDF Online

Combine multiple PDF files into one document. Upload your PDFs, preview them, arrange them in the order you want, and merge them into a single PDF.

Fast PDF processing powered by qpdf with temporary server-side processing.

Upload PDF files

Click to browse or drag and drop multiple PDF files here.

Choose PDF Files
Maximum 25 MB per PDF · Up to 20 files · 100 MB total total
Drag files to change their merge order.
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How Merge PDF works
Upload two or more PDF files, arrange them in the desired order, optionally provide a common password for encrypted PDFs, and click Merge PDF. The files are processed temporarily on the server and the merged document is then available for download.
If your PDFs are encrypted, this password is applied when reading the uploaded files. If different PDFs use different passwords, decrypt them first or merge files using a common password.

Merge PDF Online with InstaVibes

A simple PDF merger for combining documents into one organized file.

Combine Multiple PDFs

Merge multiple PDF documents into a single PDF in one operation.

Reorder Before Merging

Drag PDF files into the exact order you want in the final document.

Preview Your Files

Preview the first page and verify the detected page count before merging.

What is a PDF merger?

A PDF merger combines two or more PDF documents into one PDF file. It is useful when you need to join reports, invoices, scanned documents, applications, presentations, forms, or other PDF files into a single organized document.

How to merge PDF files online

  1. Upload two or more PDF files.
  2. Review the files and drag them into the required order.
  3. Enter a common PDF password if the documents require one.
  4. Click Merge PDF Files.
  5. Download the resulting merged PDF.

Are uploaded PDFs stored permanently?

The tool uses temporary server-side processing. The generated result is stored temporarily for download and is removed after the download or session expiry. Uploaded files are not intended to become a permanent document library.

Frequently Asked Questions

Yes. Upload two or more PDF files and InstaVibes combines them into one PDF document.

Yes. Drag the PDF file cards into the order you want before clicking Merge PDF Files.

Yes, when you know the password. The optional password field is used when reading encrypted PDFs. A common password is supported for the selected files.

Each PDF can be up to 25 MB and the combined upload is limited to 100 MB, subject to the PHP upload limits configured by the hosting server.

Yes. The browser preview displays the first page thumbnail and detected page count for each selected PDF when PDF.js is available.

Yes. The final document follows the order shown in the PDF Order list when you start the merge.