Convert HTML file to IMAGE via .NET
Get Started with .NET File Automation APIs
Install from command line as
nuget install Aspose.Total or install directly from Package Manager Console of Visual Studio.
Alternatively, get the offline MSI installer or DLLs in a ZIP file from downloads .
Convert HTML File to IMAGE in a Single File via C#
Using the API, you can also convert HTML file to IMAGE to a single image file. In order to convert all pages, you can first render your HTML document to one TIFF file and after that you can export TIFF file to IMAGE. You can open the input file using Document class and create Resolution, TiffSettings, & TIFF device objects. You can get a single TIFF image using Process method of TiffDevice class. Finally, you can load TIFF file using Image class and save it to JPEG2000 format using Save method.
Convert HTML to IMAGE With Watermark via C#
Using the API, you can also convert HTML file to IMAGE with watermark in your IMAGE document. In order to add a watermark, you can first render your HTML document to JPEG and add a watermark in it. To demonstrate the operation, you can load your converted JPEG image, add transformations using an object of Matrix class and draw a string as the watermark on the image surface using the Graphics class’ DrawString method. After adding the watermark in it, you can save the JPEG as JPEG2000 format. Below is a code example that demonstrates how to add a diagonal watermark to your document.
Convert & Rotate HTML File to IMAGE via C#
Using the API, you can also rotate the output IMAGE image as per your needs. The Image.RotateFlip method can be used to rotate the image by 90/180/270-degrees and flip the image horizontally or vertically. You can specify the type of rotation and flip to apply to the image. In order to rotate and flip the image you can load the converted JPEG image using the factory method exposed by Image class and call the Image.RotateFlip method while specifying the appropriate RotateFlipType .
Other Conversion Options
HTML What is HTML File Format?