UDF Mobil: Open and Convert UDF Files on iPhone

What is a UDF file?

UDF (UYAP Document Format) is the file format that UYAP, Turkey's court information system, uses for documents such as petitions, decisions and notifications. A UDF file is a ZIP archive containing the document text and formatting; the standard apps on an iPhone cannot open it. UDF Mobil opens UDF files directly on the iPhone, with no computer needed.

How to open a UDF file on iPhone

1. Download UDF Mobil from the App Store for free.
2. Tap a .udf file you downloaded from UYAP or received by Mail, WhatsApp, Files or AirDrop and choose UDF Mobil from the Share menu; the document opens right away in the app. You can also open the app and tap Home › UDF Aç (Open UDF).
3. The document opens with its formatting, tables and images. Use the bottom bar to edit, convert to PDF or Word, sign or share it.

Features

UDF documents

• Open and read UDF files: formatting, tables and images are preserved
• Edit and save back as UDF
• UDF → PDF, UDF → Word (.docx) and Word → UDF conversion

PDF tools

• Merge, split, compress, watermark and page numbers
• Add and remove passwords, add a handwritten signature
• PDF from TIFF and images, document scanning with the camera

For lawyers

• Deadline Calculator (Süre Hesaplayıcı): appeal and objection deadlines (HMK, CMK, İYUK, İİK) with judicial recess and public holiday adjustment; add the last day to your calendar
• KVKK Redaction: permanently blacks out Turkish ID numbers, phone numbers, IBANs and email addresses
• OCR: extract text from scanned documents on the device

Screenshots

The app interface is in Turkish by default; English can be selected in Settings.

Privacy

Your documents are processed only on your device. Conversion, OCR and KVKK redaction work without an internet connection; document contents and file names are never sent to any server. The app can be locked with Face ID. See the Privacy Policy for details.

App information

• Platform: iPhone, iOS 15.5 or later
• Languages: Turkish (default), English (Settings › Language)
• App Store: UDF Mobil (app ID 6815596236)
• Price: Free (ad-supported). Optional Premium is available monthly, yearly or lifetime; it removes ads and unlocks OCR, KVKK redaction, PDF encryption and signatures. Current prices are shown on the App Store.
• Developer: md9.net

Frequently asked questions

How do I convert a UDF file to PDF or Word?

Open the document in UDF Mobil and tap the PDF or Word button in the bottom bar. The conversion runs on the device; you can save the result or share it by email, WhatsApp or Files. To convert a Word document to UDF, use Tools › Word → UDF.

Is UDF Mobil free?

Yes. It is free to download; opening, editing and converting UDF files is free and ad-supported. Optional Premium removes ads and unlocks OCR, KVKK redaction, PDF encryption and signatures.

Are my documents safe?

Documents are processed only on your device and are never sent to any server. Conversion, OCR and redaction work offline.

Is UDF Mobil an official UYAP app?

No. UDF Mobil is an independent app. It is not developed by the Ministry of Justice of the Republic of Türkiye or by UYAP and does not connect to UYAP.

Without the app

On a computer, or if you only need to read one file, the online UDF viewer opens a .udf in the browser without uploading it anywhere, and the UDF to PDF converter works the same way (both pages are in Turkish). What a UDF file is and the other ways to open it are explained in English in UDF files from UYAP: what they are and how to open them.

Support

Questions, bug reports and suggestions: destek@md9.net