IPDF
The IPDF interface is designed to configure the output files to be saved in the PDF format.
Properties
Enum Multipage
Helps manage the process of creating multi-page output files. It is both readable and writable.
| Constant | Value | Description |
|---|---|---|
| MM_SINGLE | 0 | Each page of the source document and every one-page document are saved as separate files |
| MM_MULTI | 2 | Each multi-page source document is saved as a single multi-page file |
| MM_APPEND | 3 | The content of all documents processed is saved in a single multi-page file |
Enum Standard
Defines the type of newly created PDF files. It is both readable and writable.
| Constant | Value | Description |
|---|---|---|
| STD_REGULAR | 0 | Regular PDF file. No PDF/A and no password protection. You are able to edit this PDF in Adobe Acrobat Professional if you want. |
| STD_PDFA | 1 | Newly created PDF file corresponds to PDF/A standard. Password protection unsupported. |
| STD_PROTECTED | 2 | A password is required to open an output file. The password is set using the Password property. |
String Password
Contains the password to be used to protect newly created PDF files. Valid only if the Standard property is set to STD_PROTECTED. It is both readable and writable.
Boolean VectorMode
Defines the structure of newly created PDF file.
| Value | Description |
|---|---|
| True | Searchable PDF |
| False | Bitmapped PDF |
Enum ColorSpace
Defines the bit depth of the resulting image measured as the number of bits representing each pixel. It is both readable and writable.
| Constant | Value | Description |
|---|---|---|
| CS_BLACKWHITE | 1 | Black and white image (1 bit per pixel) |
| CS_16COLORS | 4 | Color image, 16 colors (4 bits per pixel) |
| CS_16GRAYSCALE | 132 | Grayscale image (16 hues, 4 bits per pixel) |
| CS_256COLORS | 8 | Color image, 256 colors (8 bits per pixel) |
| CS_256GRAYSCALE | 136 | Grayscale image (256 hues, 8 bits per pixel) |
| CS_TRUECOLOR | 24 | True color image (24 bits per pixel) |
Enum Compression
Defines the image compression algorithm to be applied when creating TIFF files. Please note that certain compression algorithms are only applicable to files with a certain bit depth. An exception will be generated if an attempt is made to set compression that is incompatible with the current bit depth. It is both readable and writable.
| Constant | Value | Description |
|---|---|---|
| CMP_DEFAULT | 0xFFFFFFFF | Software automatically selects the best compression mode: CCITT Group4, if the ColorSpace property is set to CS_BLACKWHITE, and LZW otherwise |
| CMP_NONE | 0 | No compression |
| CMP_CCITTGR3 | 1 | CCITT Group 3 compression (a lossless Huffman algorithm using a fixed table). Valid only if the ColorSpace property is set to CS_BLACKWHITE |
| CMP_CCITTGR4 | 2 | CCITT Group 4 compression (a more advanced version of CCITT Group 3). Valid only if the ColorSpace property is set to CS_BLACKWHITE |
| CMP_FLATE | 4 | Flate compression (lossless compression using an algorithm similar to ZIP) |
Enum Smoothing
Defines the dithering mode applied to half-tone transitions and is used to reduce stepwise rendering when representing downsampled images. Dithering is applied only if the ColorSpace property has one of the following values: CS_BLACKWHITE, CS_16COLORS, CS_16GRAYSCALE, CS_256COLORS. It is both readable and writable.
| Constant | Value | Description |
|---|---|---|
| SM_HQ | 1 | High-quality dithering is enabled to optimize the quality of the output images |
| SM_FAST | 0 | Fast dithering is used to optimize the speed of the conversion process |
Examples
Visual Basic 6
Dim objUDC As IUDC Dim itfPrinter As IUDCPrinter Dim itfProfile As IProfile Set objUDC = New UDC.APIWrapper Set itfPrinter = objUDC.Printers("Universal Document Converter") Set itfProfile = itfPrinter.Profile ' Set PDF as current output file format itfProfile.FileFormat.ActualFormat = FMT_PDF itfProfile.FileFormat.PDF.Multipage = MM_MULTI itfProfile.FileFormat.PDF.Standard = STD_PROTECTED itfProfile.FileFormat.PDF.Password = "1234567" ' Searchable or Bitmapped PDF itfProfile.FileFormat.PDF.VectorMode = True ' For Bitmapped PDF only itfProfile.FileFormat.PDF.ColorSpace = CS_GRAYSCALE_256 itfProfile.FileFormat.PDF.Compression = CMP_DEFAULT itfProfile.FileFormat.PDF.Smoothing = SM_FAST