Another issue that I ran into was trying to use the "Postscript to Image Converter". For some eps files I would like to convert them to transparent png files. I downloaded the source and tried to use the C# example and it throws an exception running the sample on Windows 7 64-bit. Is the demo version only work on 32 bit system?
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Postscript to Image Converter SDK is support both 32bit and 64bit systems.
Please refer to the C# example for PS to Image conversion at below,
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
namespace ConsoleApplication1
{
class Program
{
const int TRUE = 1;
const int FALSE = 0;
const int COMPRESSION_NONE = 1; // dump mode
const int COMPRESSION_CCITTRLE = 2; // CCITT modified Huffman RLE
const int COMPRESSION_CCITTFAX3 = 3; // CCITT Group 3 fax encoding
const int COMPRESSION_CCITTFAX4 = 4; // CCITT Group 4 fax encoding
const int COMPRESSION_LZW = 5; // Lempel-Ziv & Welch
const int COMPRESSION_JPEG = 7; // %JPEG DCT compression
const int COMPRESSION_PACKBITS = 32773; // Macintosh RLE
[DllImport(@"ps2imgsdk.dll", CharSet = CharSet.Auto)]
static extern uint VeryPDF_PSToImageConverter(
[MarshalAs(UnmanagedType.LPStr)] string FileName,
[MarshalAs(UnmanagedType.LPStr)] string OutputName,
int nIsWidthAndHeight, int xResORWidth, int yResORHeight, int nCompression, int bIsMultiPage,
int nFirstPage, int nLastPage, int nQuality, int nBitCount, int bGrayscale,
IntPtr lpUserPassword, IntPtr lpOwnPassword, int bTransparentBackground);
[DllImport(@"ps2imgsdk.dll", CharSet = CharSet.Ansi)]
static extern uint VeryPDF_PSToImageSetCode(string lpRegcode);
static void Main(string[] args)
{
string lpPSFile = "C:\\verydoc.ps";
string lpImgFile = "C:\\verydoc.png";
IntPtr UserPassword = IntPtr.Zero;
IntPtr OwnPassword = IntPtr.Zero;
int bTransparentBackground = 1;
VeryPDF_PSToImageSetCode("XXXXXXXXXXXXXXXXXXXXXXX");
uint nResult = VeryPDF_PSToImageConverter(lpPSFile, lpImgFile, FALSE, 200, 200, COMPRESSION_PACKBITS,
FALSE, -1, -1, 100, 24, FALSE, UserPassword, OwnPassword, bTransparentBackground);
}
}
}
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If you wish create PNG image with Transparent Background, please set bTransparentBackground option to TRUE.
The free trial version of Postscript to Image Converter SDK/COM can be downloaded from following web URL,
https://www.verydoc.com/ps2imgsdk.zip
