Security

Where does the Dynamic Web TWAIN SDK store images on end-user machines? Are they encrypted?

Images are stored in the memory buffer on end-user machines. Since memory configuration is limited on end-user machines, Dynamic Web TWAIN introduced a disk caching feature to allow saving image data to the local disk.

The disk caching feature is enabled by default and can be disabled by setting IfAllowLocalCache to false. You can also set how much memory Dynamic Web TWAIN can use before images start to be cached. By default, 800MB is used. You can change it using the property BufferMemoryLimit.

All cached data is encrypted, can only be accessed by Dynamic Web TWAIN, and is destroyed when Dynamic Web TWAIN is unloaded.

For more information, please check here: Dynamic Web TWAIN Features - Buffer.