Apple has implemented the new HEIC - High Efficiency Image Compression - Image data format instead of JPEG with iOS version 11. The photo format is called HEIF and stands for High Efficiency Image Format. Apple wants to enforce this format as an alternative to JPEG, the outdated quasi-standard.
HEIF is supported since September 2017 by Apple from iOS 11 and macOS High Sierra, but not from all Apple devices. Currently, these are the iPhone 7 & 7 Plus, iPhone 8 & 8 Plus, and the new iPhone X. Google announced in March 2018 the HEIF support for Android P. Microsoft also supports this new file format with Windows 10 Build 17123. For older Windows versions, there is no direct support from Microsoft. However, there is the possibility to install the additional application CopyTrans HEIC for Windows in order to also be able to display and convert HEIC / HEIF files on older Windows versions.
With the FileConverterPro version 1.0.73 it is now possible to process HEIC image files and convert them to PDF or PDF/A. HEIC files can be processed individually or via container formats (EML, MSG, ZIP ....).