PDF tools

Merge PDF

Combine multiple PDF documents into one file without uploading them to a server.

Private browser processing

Merge PDF files

Select two or more PDFs in the order they should appear.

Private by design. Processing happens in this browser. Your files are never uploaded to Tool Packer.

How it works

Process files without an upload queue

Choose two or more PDFs. Tool Packer copies their pages into a new document in the same order as your selected file list, then downloads the combined PDF.

Important limitation

Keep the original file

Encrypted or damaged PDFs may not open. Merging preserves page content but may not retain every advanced form, signature, outline, or portfolio feature.

How to use it

Get a reliable result

  1. Choose at least two PDF files in the order you want.
  2. Confirm the selected document list.
  3. Merge the pages and download the combined PDF.

Useful for

Common workflows

  • Join report chapters
  • Combine invoices into one archive
  • Assemble forms and supporting documents

Examples

What to expect

Application packet
Input
form.pdf followed by evidence.pdf
Output
One PDF containing the form pages first

Know before you start

Important limitations

  • Encrypted or damaged PDFs may fail to load.
  • Advanced signatures, portfolios, outlines, or form behavior may not survive rebuilding.
  • Very large combined documents can exceed available browser memory.

PDF toolkit

Related PDF tools

Split PDFExtract pages and page ranges into separate PDF documents.Open Split PDF →Compress PDFReduce scanned and image-heavy PDF file sizes with adjustable quality.Open Compress PDF →Rotate PDFRotate every PDF page by 90, 180, or 270 degrees.Open Rotate PDF →How to Merge PDF Files in the Right OrderCombine PDF pages into one document while checking order, page orientation, security restrictions, and advanced features.Read guide →JPG vs PDF: Which Format Should You Use?Compare a raster image with a document container and choose the right format for photos, pages, printing, forms, and sharing.Read guide →

Common questions

Merge PDF FAQ

Does merging change page appearance?

Normal page content is copied rather than rasterized, so it should retain its original appearance.

Can encrypted PDFs be merged?

Password-protected documents are not supported unless they are first saved without encryption.

Is file order preserved?

Yes. Documents and their pages are appended in the displayed selection order.

Browser-local

Processed on your device

Inputs and results are processed locally in this browser and are never uploaded.

How this processing works

The tool reads and processes this input in your browser. Tool Packer's application server does not receive the input or generated result.

Read the full privacy explanation