Notes on Performance with PDF and PostScript Images:

• IG_fltr_pageinfo_get_ex_W, IG_fltr_load_file_W, IG_fltr_load_file_format_W, IG_fltr_pagecount_file_format_W, IG_fltr_pagedelete_file_W, and IG_fltr_pageswap_file_W may work slower on PDF and PostScript images, compared to their ANSI analogs IG_fltr_pageinfo_get_ex, IG_fltr_load_file, IG_fltr_load_file_format, IG_fltr_pagecount_file_format, IG_fltr_pagedelete_file, and IG_fltr_pageswap_file.
• IG_mpi_file_open_W and IG_mpi_file_save_W may work slower on PDF and PostScript images that contain Unicode symbols in their file names (symbols that are not present in the system's active code page), compared to images whose file names don't contain such symbols.