LinearizationParams

LinearizationParams

Overview

LinearizationParams is a class in Aspose.Pdf FOSS for Java.

Represents the linearization parameter dictionary (Table F.1, ISO 32000-1:2008).

Properties

NameTypeAccessDescription
versiondoubleReadReturns the linearization version (always 1.0).
fileLengthlongReadReturns the total file length (/L).
hintStreamOffsetlongReadReturns the primary hint stream byte offset (/H[0]).
hintStreamLengthintReadReturns the primary hint stream length (/H[1]).
firstPageObjNumintReadReturns the first page’s page object number (/O).
endOfFirstPagelongReadReturns the offset of end of first page section (/E).
numPagesintReadReturns the number of pages (/N).
mainXRefOffsetlongReadReturns the offset of the main xref table (/T).
firstPageNumberintReadReturns the first page number (/P), default 0.

Methods

SignatureDescription
parse(dict: COSDictionary)LinearizationParamsParses linearization parameters from a COSDictionary.
toDictionary()COSDictionaryWrites this linearization parameter dictionary as a COS dictionary.
detect(reader: RandomAccessReader)LinearizationParamsDetects whether a PDF is linearized by scanning the first 1024 bytes
for a linearization parameter dictionary.
getVersion()doubleReturns the linearization version (always 1.0).
getFileLength()longReturns the total file length (/L).
setFileLength(fileLength: long)
getHintStreamOffset()longReturns the primary hint stream byte offset (/H[0]).
setHintStreamOffset(offset: long)
getHintStreamLength()intReturns the primary hint stream length (/H[1]).
setHintStreamLength(length: int)
getFirstPageObjNum()intReturns the first page’s page object number (/O).
setFirstPageObjNum(num: int)
getEndOfFirstPage()longReturns the offset of end of first page section (/E).
setEndOfFirstPage(offset: long)
getNumPages()intReturns the number of pages (/N).
setNumPages(n: int)
getMainXRefOffset()longReturns the offset of the main xref table (/T).
setMainXRefOffset(offset: long)
getFirstPageNumber()intReturns the first page number (/P), default 0.
setFirstPageNumber(num: int)
isValid(actualFileLength: long)booleanValidates that /L matches the actual file length.

See Also