OPTools OP
📄

PDF Merger

Merge multiple PDF files into one document. Drag-and-drop reordering.

PDFpdfmergecombineconcatenate🔒 Browser-only

📋 How to use PDF Merger

  1. 1Upload 2+ PDF files
  2. 2Arrange order if needed
  3. 3Click Merge
  4. 4Download merged PDF

Try it now

100% browser-based. PDFs are merged locally — nothing is uploaded. Rotate any file's pages before merging.

Drop PDF files here

or click to browse · max 100 MB/file

Examples

Merge 3 PDFs

Input: "file1.pdf, file2.pdf, file3.pdf"
Output: "merged.pdf"

Frequently Asked Questions

What's the file size limit?▾

100 MB per file, up to 20 files.

Is it secure?▾

Files are processed server-side and deleted immediately after.

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