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PDF Utilities

PDF Merge

Combine multiple PDF documents into a single file with customizable page ordering.

PDF Merge by Utilflow. Merges multiple PDF files into a single document. Files are combined in the order they are uploaded, with drag-to-reorder support.

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Processing mode

Secure server-side processing

Accepted input

.pdf

Output format

.pdf

File limit

50 MB per file

Batch limit

20 items per run

Category

Compress, merge, split, and inspect PDF documents.

What this tool does

Merges multiple PDF files into a single document. Files are combined in the order they are uploaded, with drag-to-reorder support.

How it works

All PDFs are uploaded to the server and merged using pdf-lib. Pages from each source document are copied into a new combined document.

Performance profile

Merge speed depends on total page count across all files.

Common use cases

The strongest fit for pdf merge is practical, repeatable file work where teams want speed without losing clarity.

Combining invoice pages

Merging contract sections

Assembling report chapters

Frequently asked questions

What does PDF Merge do?

Merges multiple PDF files into a single document. Files are combined in the order they are uploaded, with drag-to-reorder support.

How does PDF Merge process files?

All PDFs are uploaded to the server and merged using pdf-lib. Pages from each source document are copied into a new combined document.

Is PDF Merge private?

Files are processed in-memory on the server and are never stored to disk or any third-party service.

What are the limits for PDF Merge?

Maximum 50MB per file Maximum 20 files per merge

Ready to use pdf merge inside the full workspace?

Public pages handle discovery and sharing. The private dashboard handles the actual run flow, saved activity, and your account-level workspace.

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