HTML to PDF converter for Java and .NET

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PD4ML.NET API Usage Example

The following code shows how to use PD4ML.NET API from your .NET application. It is a simple command line HTML-to-PDF conversion utility, which utilizes the basic PD4ML features. An extended version of the command-line utility (pd4net.exe) is included to PD4ML.NET distribution in binary form.

 

using System;
using
System.Collections;
using
System.Drawing;
using
System.Reflection;
using
System.IO;
using
org.zefer.pd4ml;

namespace
PD4Test {

class PD4Test {

const string USAGE =
    "Usage: pd4net.exe '<url>' <htmlWidth> [pageFormat] [-permissions <NUMBER>]"
+
   
"[-bookmarks <HEADINGS|ANCHORS>] [-orientation <PORTRAIT|LANDSCAPE>] " +
   
"[-ttf <ttf_fonts_dir>] [-out <output_file_path>]";

private static void wrongParam(string msg) {
    Console.Out.WriteLine("invalid parameter: " + msg);
   
Console.Out.WriteLine( USAGE );
}

private void generatePDF(String inputUrl, int htmlWidth,
        String pageFormat, int permissions, String bookmarks,
       
String orientation, String fontsDir, String outfile) {

    PD4ML pd4ml = new PD4ML();

    pd4ml.HtmlWidth = (htmlWidth);

    if(orientation == null)
        orientation =
"portrait";

    if ("PORTRAIT".Equals(orientation.ToUpper()))
        pd4ml.PageSize = PD4Constants.getSizeByName(pageFormat);
   
else
        pd4ml.PageSize =
            pd4ml.changePageOrientation( PD4Constants.getSizeByName(pageFormat) );

   
if ( permissions != -1 )
        pd4ml.setPermissions(
"empty", permissions, true);

    if ( bookmarks != null ) {
       
if ( "ANCHORS".Equals(bookmarks.ToUpper()) )
            pd4ml.generateOutlines(
false);
       
else if ( "HEADINGS".Equals(bookmarks.ToUpper()) )
            pd4ml.generateOutlines(
true);
    }

    if ( fontsDir != null && fontsDir.Length > 0 )
        pd4ml.useTTF( fontsDir,
true );

    if (outfile == null || outfile.Equals("-")) {
        pd4ml.render(
new Uri(inputUrl), Console.Out);
    }
else
        pd4ml.render( new Uri(inputUrl),
            new
System.IO.FileStream(outfile, System.IO.FileMode.Create));
    }
}

[STAThread]

static void Main(string[] args) {
    String
infile = null;
   
int width = -1;
   
String format = "A4";
   
int permissions = -1;
   
String bookmarks = null;
   
String orientation = "portrait";
   
String ttf = null;
   
String outfile = null;
   
bool formatSet = false;
   
FileInfo ff;

    for( int i = 0; i < args.Length; i++ ) {
       
if ( "-permissions".Equals( args[i] ) ) {
            ++i;
           
if ( i == args.Length ) {
                wrongParam(
"missing permissions number " +
                    "(a sum of single permission codes)"
);
               
return;
            }
            permissions =
Int32.Parse(args[i]);
           
continue;
   
    }

        if ( "-bookmarks".Equals( args[i] ) ) {
    
        ++i;
       
    if ( i == args.Length ) {
        
        wrongParam("missing bookmark type (HEADINGS or ANCHORS)");
           
    return;
            }
            bookmarks = args[i];
            continue;
        }

        if ( "-orientation".Equals( args[i] ) ) {
            ++i;
            if ( i == args.Length ) {
                wrongParam("missing orientation type (PORTRAIT or LANDSCAPE)");
                return;
            }
            orientation = args[i];
            continue;
   
    }

        if ( "-ttf".Equals( args[i] ) ) {
   
        ++i;
            if ( i == args.Length ) {
                wrongParam("missing TTF fonts directory");
                return;
            }
     
       ff = new FileInfo(args[i]);
            ttf = ff.FullName;
            continue;
        }

        if ( "-out".Equals( args[i] ) ) {
            ++i;
            if ( i == args.Length ) {
                wrongParam("missing output file name");
                return;
            }
            outfile = args[i];
   
        continue;
        }

        if ( args[i].StartsWith("-") ) {
            wrongParam("unknown: " + args[i]);
            return;
        }

        if ( infile == null ) {
            string ss = args[i];
            if(!ss.StartsWith("http://") && !ss.StartsWith("file://")) {
                ff = new FileInfo(ss);
                infile = "file:///" + ff.FullName;
            }else
                infile = ss;
            continue;
        }

        if ( width == -1 ) {
            width = Int32.Parse(args[i]);
            continue;
        }

        if ( !formatSet ) {
            formatSet = true;
            format = args[i];
            continue;
        }

        wrongParam(args[i]);
       
 return;
    }

   
if ( infile == null ) {
        Console.Out.WriteLine("source URL is missing");
        Console.Out.WriteLine( USAGE );
        return;
    }
   
if ( width == -1 ) {
        Console.Out.WriteLine("HTML width parameter is missing");
        Console.Out.WriteLine( USAGE );
        return;
    }
    PD4Test converter =
new PD4Test();
    converter.generatePDF( infile, width, format, permissions,
        bookmarks, orientation, ttf, outfile );
}
}
 

PD4ML.NET API  copies the original PD4ML API for Java - it is just adjusted for .NET specifics. So the original PD4ML Java documentation is also a source of useful information for .NET development.

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