PDFNet Methods

AddFontSubst functions can be used to create font substitutes that can override default PDFNet font selection algorithm. These functions are useful in situations where referenced fonts are not present in the document and PDFNet font substitution algorithm is not producing desired results. AddFontSubst(fontname, fontpath) maps the given font name (i.e. 'BaseFont' entry from the font dictionary) to a font file. AddFontSubst(ordering, fontpath) maps the given character ordering (see Ordering entry in CIDSystemInfo dictionary; Section 5.6.2 in PDF Reference) to a font file. This method is less specific that the former variant of AddFontSubst, and can be used to override a range of missing fonts (or any missing font) with a predefined substitute. The following is an example of using these functions to provide user defined font substitutes:

Adds the font subst.

Adds a location for PDFNet to look for resources file.

Gets whether or not fonts are available to be used. The first time PDFNet is initialized on a new system it will catalog all the fonts for future use. This will return true when all this is done.

A swtich that can be used to turn on/off JavaScript engine

Determines whether the specified Object is equal to the current Object.

Serves as a hash function for a particular type.

Returns a JSON entry with all the fonts that PDFNet has access to. Custom fonts can be added by providing a path to their directory via pdftron.PDFNet.AddResourceSearchPath Each entry consists of a file path, a display name, and a PDFTron name. For most fonts (C:/Windows/Fonts), the display name can be used in UI widgets. For fonts either downloaded or imported use the full path, but use ms-appdata:///local for the local folder and ms-appx:/// for the installed location, and append a # followed by the display name. For example, a font in the App's Assets folder called font.ttf, with display name Custom Font would be used in a UI wiget as follows: "ms-appx:///Assets/font.ttf#Custom Font" For all fonts, the PDFTron name is to be used for creating fonts used in the PDF

Gets the Type of the current instance.

Gets the version number of PDFNet library.

Initializes PDFNet library in demo mode. Initialize() is usually called once, during process initialization.

Initializes PDFNet library. Initialize() is usually called once, during process initialization.

Test whether JavaScript is enabled.

Used to set a specific Color Management System (CMS) for use during color conversion operators, image rendering, etc.

Sets the default ICC color profile for DeviceCMYK color space.

Sets the default ICC color profile for DeviceRGB color space.

Sets the default policy on using temporary files.

Sets the default compression leve l for Flate (ZLib).

Sets the location of persistent cache files

Sets the location of PDFNet resource file.

Adds the font substitutes based on the specified character ordering.

Sets the default parameters for the viewer cache. Any subsequently opened documents will use these paramaters.

Terminates PDFNet library. Terminate() is usually called once, when the process is terminated.

Returns a string that represents the current object.