Which file types can this tool merge?

You can only merge files with the .udf extension. You can select multiple UDF files and combine them into a single UDF file.

How many files are required at minimum to merge?

At least 2 successful UDF files are required to merge. The number of files read is also shown separately in the interface.

Are my files uploaded to a server?

No, your files are processed in your browser and do not leave your device. The tool works in compliance with KVKK.

How can I change the merge order of the files?

You can drag and drop the files you uploaded to put them in the order you want. The ordering is reflected in the merge result according to this arrangement.

PDF Merge Tool

🔒Your files never leave your device — processed in-browser, never uploaded to a server.

⚖️ + ⚖️ → ⚖️

Upload UDF Files

Select multiple files · or drag and drop

🔒 Privacy-First

All UDF files are processed entirely in your browser and never reach our servers. Close the window after merging and nothing is left behind.

Typical use case: archive 50 case files into one, send a single file to a client, or back up a court file in one go.

Auto-deleted in 7 days

256-bit SSL

Support

Your files are encrypted with SSL and automatically deleted from our servers 7 days after processing.

📖 How to Use

Upload PDF

Drag-drop or click to select your files.

Pick options

Page range / quality / orientation as needed.

Process

Click — server completes the task in seconds.

Download

Get the result; files are deleted in 7 days.

Frequently asked questions

No. This tool only extracts and merges the plain text of .udf files downloaded from UYAP; to merge PDFs you can use our separate "Merge PDF" tool.

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UDF Batch Merger