Returns this page's compression information. Read-only property.
ImageFileObject.Pages(pagenumber).CompressionInfo
Long
The CompressionInfo property settings are:
Setting | Description |
1 | EOLs (Include/expect EOLs). Not used for JPEG. |
2 | Packed Lines (Byte align new lines). Not used for JPEG. |
4 | Prefixed EOLs (Include/expect prefixed EOLs). Not used for JPEG. |
8 | Compressed_LTR (Compressed bit order left to right). Not used for JPEG. |
16 | Expanded_LTR (Expand bit order left to right). Not used for JPEG. |
32 | Negate (Invert black/white on expansion). Not used for JPEG. |
64 | Hi_Compression/Hi_Quality (JPEG compression only). |
128 | Hi_Compression/Med_Quality (JPEG compression only). |
256 | Hi_Compression/Low_Quality (JPEG compression only). |
512 | Med_Compression/Hi_Quality (JPEG compression only). |
1024 | Med_Compression/Med_Quality (JPEG compression only). |
2048 | Med_Compression/Low_Quality (JPEG compression only). |
4098 | Low_Compression/Hi_Quality (JPEG compression only). |
8196 | Low_Compression/Med_Quality (JPEG compression only). |
16392 | Low_Compression/Low_Quality (JPEG compression only). |
This example returns the page's compression information.
x = Img.Pages(1).CompressionInfo
Image files that do not have a compression type of JPEG will have a value between 1 and 63. This value will be a combination of the values of 1 to 32. For JPEG files, the value will from 64 to 16384 and will only be one of these values.