# ConvertUDFtoPDF.com

> Free, browser-based converter for Turkish judicial UDF documents. Converts UYAP .udf and .tiff files to PDF, and Word documents, text-based PDFs and images to UDF. All processing is client-side — files are never uploaded to any server.

## What is a UDF File?

UDF (UYAP Doküman Formatı) is the proprietary document format of Turkey's national judicial network, UYAP. Court decisions, indictments, hearing minutes, e-notifications and petitions are distributed in this format. A .udf file is a compressed (ZIP) archive containing XML content, style definitions, embedded images and, optionally, a PKCS#7 digital signature block. Microsoft Word, Adobe Acrobat and other standard office software cannot open it.

## What This Tool Does

- Converts .udf files to PDF while preserving bold/italic/underline formatting, tables, headers, footers and page breaks
- Converts .udf files to editable Word (.docx) documents
- Converts multi-page .tiff scans (including fax-compressed CCITT G4) to PDF
- Converts Word (.docx), text-based PDFs and JPG/PNG/WEBP images to UYAP-compatible .udf files
- Batch processing: drop many files or a single ZIP archive; outputs can be merged into one PDF or one UDF
- Reorders the file list by drag-and-drop, which sets the page order of a merged PDF
- Edits PDF pages before download: rotate or delete individual pages (not possible on password-protected PDFs)
- Stamps every page with "ASLI GİBİDİR", "SURETİDİR", "TASLAK" or a custom text, and writes the e-signature details found inside a .udf as a footnote on the last page. The stamp is a visual mark only — it is neither a wet signature nor an electronic signature
- Accepts images pasted from the clipboard with Ctrl+V
- Optional OCR (Tesseract.js) for scanned documents
- Works offline as a Progressive Web App after the first visit; once installed it also appears in the phone's Share menu and can open .udf files directly from the desktop
- Maximum file size 25 MB, no registration, no cost
- Converted PDFs do not carry the original UYAP electronic signature; the signed .udf remains the legally valid original

## Who Uses This Tool

Turkish judges, prosecutors, lawyers, trainee lawyers, notaries, court clerks and citizens who receive court documents through UYAP or the e-Devlet portal and need to open them on devices without the official UYAP Document Editor.

## Key Pages

- English version: https://convertudftopdf.com/en/
- All guides (hub): https://convertudftopdf.com/rehberler
- What is a UDF file (Turkish): https://convertudftopdf.com/udf-nedir
- UDF to PDF step-by-step: https://convertudftopdf.com/udf-to-pdf
- Guide for lawyers: https://convertudftopdf.com/avukatlar-icin-udf
- Guide for citizens: https://convertudftopdf.com/vatandas-udf-rehberi
- Guide for judges: https://convertudftopdf.com/hakim-udf-kullanimi
- Guide for notaries: https://convertudftopdf.com/noter-udf-rehberi
- Digital signature verification: https://convertudftopdf.com/udf-dijital-imza-dogrulama

## More Pages

- UDF format specification (technical): https://convertudftopdf.com/udf-format-spec
- UDF troubleshooting: https://convertudftopdf.com/udf-sorun-giderme
- UDF vs PDF comparison: https://convertudftopdf.com/karsilastirma
- UDF to Word: https://convertudftopdf.com/udf-dosyasi-word-cevirme
- Word to UDF: https://convertudftopdf.com/word-udf-cevirme
- PDF to UDF: https://convertudftopdf.com/pdf-udf-cevirme
- JPG/PNG to UDF: https://convertudftopdf.com/jpg-udf-cevirme
- Opening UDF on a phone: https://convertudftopdf.com/udf-dosyasi-telefonda-acma
- UYAP overview: https://convertudftopdf.com/uyap-rehber
- UYAP glossary: https://convertudftopdf.com/uyap-sozluk
- English: What is UDF: https://convertudftopdf.com/en/what-is-udf
- English: UDF to PDF: https://convertudftopdf.com/en/udf-to-pdf
- English: UYAP guide: https://convertudftopdf.com/en/uyap-guide
- About: https://convertudftopdf.com/hakkimizda
- Privacy policy: https://convertudftopdf.com/gizlilik-politikasi

## Privacy

- No user data or documents are collected; there is no account system
- No files leave the browser — conversion runs entirely in client-side JavaScript on a static site (GitHub Pages)
- The site's JavaScript is served unminified and can be audited directly in the browser