JEITA  CP-3451  Explication - 145 - Examples of the preferred tag handling for each type of processing are given below. Explication Table 4    Exif IFD tag handling examples Tag Rotation Trimming Retouch Red-eye Special CompressedBitsPerPix el ID=37122 Update value   based on compression mode set when saved. Same as "Rotation" Same as "Rotation" Same as "Rotation" Same as "Rotation" PixelXDimension ID=40962 Update to width    after rotation. Update to width    after trimming. No change No change No change PixelYDimension ID=40963 Update to height   after rotation. Update to height   after trimming. No change No change No change SubsecTime ID=37520 If the writer can record this tag, update when saving. Same as "Rotation" Same as "Rotation" Same as "Rotation" Same as "Rotation" SubjectLocation   ID=41492 Update to value     after rotation Update to value     after trimming No change No change No change SubjectArea   ID=37396 Update to value     after rotation Update to value     after trimming No change No change No change value =0 No change No change Set to 1. Set to 1. Can   be   left unchanged depending on    size    of affected area Set to 1. CustomRendere d   ID=41985 value =1 No change No change No change. Preferably this processing should not be performed. No change. Processing may be performed depending on    size    of area. No change. Preferably this processing should not be performed. 7.4.5    InterOperability IFD Tags in the InterOperability IFD should be copied unchanged. 7.4.6    GPS Info IFD Tags in the GPS Info IFD should be copied unchanged. 7.4.7    1st IFD The following tags should be copied unchanged.