直接访问功能
直接访问功能
直接访问例程直接作用于 PDF 文件和流，无需构建完整的内存中文档模型，以状态换取速度以及大输入下更小的内存占用
文件、页面和捕获操作
DAAppendFileDACloseFileDACopyFileDAFindPageDAHidePageDAMovePageDANewPageDANewPagesDANormalizePageDAOpenFileDAOpenFileReadOnlyDAOpenFromStreamDARemoveUsageRightsDARenderPageToDCDARenderPageToFileDARenderPageToStreamDARenderPageToStringDARenderPageToVariantDARotatePageDASaveAsFileDASaveCopyToStreamDASaveImageDataToFileDASaveToStreamDASetInformationDASetPageBoxDASetPageLayoutDASetPageModeDASetPageSizeDASetTextExtractionAreaDASetTextExtractionOptionsDASetTextExtractionScalingDASetTextExtractionWordGapDAShiftedHeader
检查、提取与渲染
DACapturePageDACapturePageExDADrawCapturedPageDADrawRotatedCapturedPageDAEmbedFileStreamsDAExtractPageTextDAExtractPageTextBlocksDAGetAnnotationCountDAGetFormFieldCountDAGetFormFieldTitleDAGetFormFieldValueDAGetImageDataToStringDAGetImageDataToVariantDAGetImageDblPropertyDAGetImageIntPropertyDAGetImageListCountDAGetInformationDAGetObjectCountDAGetObjectToStringDAGetObjectToVariantDAGetPageBoxDAGetPageContentToStringDAGetPageContentToVariantDAGetPageCountDAGetPageHeightDAGetPageImageListDAGetPageWidthDAGetTextBlockAsStringDAGetTextBlockBoundDAGetTextBlockCharWidthDAGetTextBlockColorDAGetTextBlockColorTypeDAGetTextBlockCountDAGetTextBlockFontNameDAGetTextBlockFontSizeDAGetTextBlockTextDAHasPageBoxDAPageRotationDAReleaseImageListDAReleaseTextBlocks