: The most "verified" method. Open your file in InDesign, go to File > Export , and select InDesign Markup (IDML) . Alternatively, use File > Save As and choose InDesign CS4 or later (IDML) Markzware IDMarkz (Verified Standalone/Online)
: IDML files are generally cross-platform and more stable for sharing across different operating systems. Top Verified Online and Standalone Converters
If you do not have InDesign and need a one-time conversion, the most robust "verified" method is to use the official trial software.
