How to set a location of images during PDF to HTML in C# and .NET
Complete code
GitHubusing System;
using System.IO;
using SautinSoft;
namespace Sample
{
class Sample
{
static void Main(string[] args)
{
// Before starting, we recommend to get a free key:
// https://sautinsoft.com/start-for-free/
// Apply the key here:
// SautinSoft.PdfFocus.SetLicense("...");
// Here you will find how to keep images in the resulting HTML document.
string pdfFile = Path.GetFullPath(@"..\..\..\simple text.pdf");
string htmlFile = "Result.html";
// Convert PDF file to HTML file
SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();
// Way 1 (default): Images will be stored inside HTML document as base64, jpeg images.
/*
f.HtmlOptions.IncludeImageInHtml = true;
// Auto - the same image format as in the source PDF;
// 'Jpeg' to make the document size less;
// 'PNG' to keep the highest quality, but the highest size too.
f.EmbeddedImagesFormat = PdfFocus.eImageFormat.Jpeg;
*/
// Way 2: Images will be stored as JPG files in a special folder "{pdf name}_images".
// Images will have names "picture100.jpg", "picture101.jpg" .. "pictureN.jpg".
// Let's set the quality for jpeg to 95 percents.
f.HtmlOptions.ImageFolder = Path.GetDirectoryName(htmlFile);
// Auto - the same image format as in the source PDF;
// 'Jpeg' to make the document size less;
// 'PNG' to keep the highest quality, but the highest size too.
f.EmbeddedImagesFormat = PdfFocus.eImageFormat.Jpeg;
f.EmbeddedJpegQuality = 95;
f.HtmlOptions.ImageSubFolder = String.Format("{0}_images", Path.GetFileNameWithoutExtension(pdfFile));
f.HtmlOptions.ImageFileName = "picture";
f.HtmlOptions.ImageNumStart = 100;
f.HtmlOptions.IncludeImageInHtml = false;
// Way 3: Images will be stored as PNG files in the same directory with the HTML file.
// All images on each page will be combined in a single image.
/*
f.HtmlOptions.ImageFolder = Path.GetDirectoryName(htmlFile);
// 'Jpeg' to make the document size less; Or 'PNG' to keep the highest quality.
f.EmbeddedImagesFormat = PdfFocus.eImageFormat.Png;
f.HtmlOptions.ImageSubFolder = "";
f.HtmlOptions.IncludeImageInHtml = false;
*/
f.OpenPdf(pdfFile);
if (f.PageCount > 0)
{
int res = f.ToHtml(htmlFile);
// Open the result for demonstration purposes.
if (res == 0)
System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(htmlFile) { UseShellExecute = true });
}
}
}
}
Imports System
Imports System.IO
Imports SautinSoft
Namespace Sample
Friend Class Sample
Shared Sub Main(ByVal args() As String)
' Before starting, we recommend to get a free key:
' https://sautinsoft.com/start-for-free/
' Apply the key here
' SautinSoft.PdfFocus.SetLicense("...");
' Here you will find how to keep images in the resulting HTML document.
Dim pdfFile As String = Path.GetFullPath("..\..\..\simple text.pdf")
Dim htmlFile As String = "Result.html"
' Convert PDF file to HTML file
Dim f As New SautinSoft.PdfFocus()
' Way 1 (default): Images will be stored inside HTML document as base64, jpeg images.
'f.HtmlOptions.IncludeImageInHtml = True
' Auto - the same image format as in the source PDF;
' 'Jpeg' to make the document size less;
' 'PNG' to keep the highest quality, but the highest size too.
'f.EmbeddedImagesFormat = PdfFocus.eImageFormat.Auto
' Way 2: Images will be stored as JPG files in a special folder "{pdf name}_images".
' Images will have names "picture100.jpg", "picture101.jpg" .. "pictureN.jpg".
' Let's set the quality for jpeg to 95 percents.
f.HtmlOptions.ImageFolder = Path.GetDirectoryName(htmlFile)
' 'Jpeg' to make the document size less; Or 'PNG' to keep the highest quality.
f.EmbeddedImagesFormat = PdfFocus.eImageFormat.Jpeg
f.EmbeddedJpegQuality = 95
f.HtmlOptions.ImageSubFolder = String.Format("{0}_images", Path.GetFileNameWithoutExtension(pdfFile))
f.HtmlOptions.ImageFileName = "picture"
f.HtmlOptions.ImageNumStart = 100
f.HtmlOptions.IncludeImageInHtml = False
' Way 3: Images will be stored as PNG files in the same directory with the HTML file.
' All images on each page will be combined in a single image. '
'f.HtmlOptions.ImageFolder = Path.GetDirectoryName(htmlFile)
' 'Jpeg' to make the document size less; Or 'PNG' to keep the highest quality.
'f.EmbeddedImagesFormat = PdfFocus.eImageFormat.Png
'f.HtmlOptions.ImageSubFolder = ""
'f.HtmlOptions.IncludeImageInHtml = False
f.OpenPdf(pdfFile)
If f.PageCount > 0 Then
Dim res As Integer = f.ToHtml(htmlFile)
' Open the result for demonstration purposes.
If res = 0 Then
System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(htmlFile) With {.UseShellExecute = True})
End If
End If
End Sub
End Class
End Namespace
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