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Merge PDFs

Combine multiple PDFs into one

Drop your PDF files here

Drag and drop or click Choose PDF files (up to 100 MB per file)

Choose PDF files
Practical guides
How to Merge PDFs in the Correct Order Every TimeHow to Split a PDF Into Separate Files by Range or PageHow to Sign a PDF Fast on Mobile and Desktop
How to use this tool well

How to use this tool well

Merge PDFs

Combine multiple PDF files into one document online. Reorder input files before merging for a clean final output.

Use one clean processing pass, then do a quick QA review before you share the result.

Good fit for

  • Bundle proposals, appendices, and signed forms.
  • Create a single upload-ready file for applications.
  • Merge chapter PDFs into one ebook document.

Typical workflow

  1. 1. Upload your file to the Merge PDFs tool.
  2. 2. Choose processing options to match your output needs.
  3. 3. Process and download the result when ready.

Check before you share

  • Review first, middle, and last pages after processing.
  • Check text, tables, signatures, or stamps at 100% zoom.
  • If something looks off, change one setting and rerun once.

Related SentryPDF tools

Split PDF

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Organize PDF

Reorder, rotate, duplicate, and remove pages in PDF files with drag-and-drop page management.

Compress PDF

Reduce PDF file size online while preserving readability. Share large PDFs faster by compressing in one step.

FAQ

How many PDFs can I merge at once?

You can upload multiple PDF files and merge them in one operation. The order of files in the upload list determines the order in the final document.

Can I reorder files before merging?

Yes. You can reorder the uploaded files before starting the merge. The final PDF will follow the order you set.

Will merging PDFs preserve bookmarks and hyperlinks?

Basic merging preserves the visible content of each PDF. Bookmarks and internal links from the original files may not all carry over into the merged document.

Can I merge password-protected PDFs?

No. You must remove the password from each PDF first using the Unlock PDF tool, then merge them.

Is there a page limit when merging PDFs?

There is no hard page limit enforced during the merge operation. Very large combined documents may take longer to process and download.

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Related guides for this tool

Open tool: Merge PDFs

Step-by-step guides

How to Merge PDFs in the Correct Order Every TimeHow to Split a PDF Into Separate Files by Range or PageHow to Sign a PDF Fast on Mobile and DesktopAll guides

Workflow guides

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