FILEPDFOPTIONS

typedef struct _FILEPDFOPTIONS
{
   L_UINT uStructSize;
   L_BOOL bUseLibFonts;
   L_INT nDisplayDepth;
   L_INT nTextAlpha;
   L_INT nGraphicsAlpha;
   L_UCHAR szPassword[FILEPDFOPTIONS_MAX_PASSWORD_LEN]; // Password to be used with encrypted PDF files
   L_UINT uFlags;
   L_BOOL bCallbackEnabled;
   BITMAPLOADCALLBACK pfnLoadCallback;
   L_VOID* pCallbackUserData;
   L_TCHAR szOutputFullPath[L_MAXPATH];
   L_BOOL bUseImageData;
} FILEPDFOPTIONS, * pFILEPDFOPTIONS;

The FILEPDFOPTIONS structure provides information on loading PDF, PS or EPS files in LEADTOOLS.

The following functions make use of this structure:

LFileSettings::GetPDFOptions

LFileSettings::SetPDFOptions

Member	Description
uStructSize	Size of the structure. This must be set before passing this structure to the LEAD functions.
bUseLibFonts	Flag that indicates whether to use the library installed fonts or system fonts. Possible values are:

	Value	Meaning
	TRUE	Use the library installed fonts.
	FALSE	Use the system fonts.

	*This option affect pdf format when PDF_USE_PDFENGINE is set to use LtPdfEngine.dll, it still affects Postscript format.
nDisplayDepth	Resulting bitmap pixel depth. Possible values are:

	Value	Meaning
	1	1 bit per pixel in the resultant bitmap
	4	4 bits per pixel in the resultant bitmap
	8	8 bits per pixel in the resultant bitmap
	24	24 bits per pixel in the resultant bitmap

	*This option affect pdf format when PDF_USE_PDFENGINE is set to use LtPdfEngine.dll, it still affects Postscript format
nTextAlpha	Flag that indicates what type of font anti-aliasing to use. Possible values are:

	Value	Meaning
	1	Do not use font anti-aliasing.
	2	Use 2-bit font anti-aliasing.
	4	Use 4-bit font anti-aliasing.

	*This option affect pdf format when PDF_USE_PDFENGINE is set to use LtPdfEngine.dll, it still affects Postscript format
nGraphicsAlpha	Flag that indicates what type of graphics anti-aliasing to use. Possible values are:

	Value	Meaning
	1	Do not use graphics anti-aliasing.
	2	Use 2-bit graphics anti-aliasing.
	4	Use 4-bit graphics anti-aliasing.
	*This option affect pdf format when PDF_USE_PDFENGINE is set to use LtPdfEngine.dll, it still affects Postscript format
szPassword	String that contains the user password. This Password to be used with encrypted PDF files.
uFlags	Flags for PDF or Postscript files. Possible values are:
	Value	Meaning
	PDF_DISABLE_CROPPING	Used to disable cropping for postscript files.
	PDF_DISABLE_CIECOLORS	Used to disable using CIE colors for both PDF and postscript files.
	PDF_ENABLE_INTERPOLATE	Used to enable interpolation for PDF files.
	PDF_HIDE_NOAP_ANNOTATIONS	Used to hide annotation objects that have no appearance stream. If this flag is not set, all annotation objects will be loaded (objects who have appearance stream and who do not have appearance stream).
	PDF_HIDE_ALL_ANNOTATIONS	Used to hide all annotation objects, objects who have appearance stream and who do not have appearance stream.
	PDF_USE_PDFENGINE	Use LtPdfEngine for loading Pdf files.

	*This option affect pdf format when PDF_USE_PDFENGINE is set to use LtPdfEngine.dll, it still affects Postscript format
bCallbackEnabled	Obsolete in Version 17.5.
pfnLoadCallback	Obsolete in Version 17.5.
pCallbackUserData	Obsolete in Version 17.5.
szOutputFullPath	Obsolete in Version 17.5.
bUseImageData	Obsolete in Version 17.5.

Comments

pFILEPDFOPTIONS is a pointer to a FILEPDFOPTIONS structure.

Use LFileSettings::SetPDFOptions and LFileSettings::GetPDFOptions to set and get the PDF, PS and EPS file options.

PDF, PS and EPS files have no physical width or height in pixels. You can use RASTERIZEDOCOPTIONS to control how the final document is rendered as a raster image. For more information, refer to RASTERIZEDOCOPTIONS.

Aliasing is the effect on all pixel devices where diagonal and curved lines have a zigzag appearance. As pixels get larger, this effect becomes more noticeable. Anti-aliasing refers to methods designed to decrease or eliminate this effect. This is done by shading the pixels along the borders of the affected lines.