getPDFCompressionType()

Description

Gets the compression type for PDF files.

Syntax

ImageViewerObject.io.pdfinfo.getPDFCompressionType();

Parameters

None

Return value

EnumPDFCompressionType

Remarks

PDF compression type Description Supported image format
EnumPDFCompressionType.AUTO Auto mode 1, 4, 8, 24 bit
EnumPDFCompressionType.FAX3 CCITT Group 3 fax encoding 1 bit
EnumPDFCompressionType.FAX4 CCITT Group 4 fax encoding 1 bit
EnumPDFCompressionType.LZW Lempel-Ziv & Welch 1, 4, 8, 24 bit
EnumPDFCompressionType.JPEG JPEG encoding 4, 8, 24 bit

When an error occurs, check getErrorCode() or getErrorString() for error information.

See also

io.pdfinfo.setPDFCompressionType()