PDF is a document format: it stores fixed-layout pages with embedded fonts, vector graphics, and page geometry defined by ISO 32000. TXT is a document format that contains raw Unicode or ASCII characters with no embedded formatting, fonts, or layout information. This conversion changes the file's encoding, compression method, and supported feature set. Text content, headings, and basic formatting are transferred; complex features such as macros or embedded objects may not translate fully. Converting between these two formats is common when the source application does not support TXT natively or when the target platform only accepts TXT. 1converter processes this conversion server-side using open-source tools. Files are transferred over HTTPS, converted on secure cloud servers, and automatically deleted after 24 hours.