Sign XLS File in Java & View in HTML

How to Add Image Signatures to XLS

Using Conholdate.Total for Java - insert custom image as an electronic signature to a XLS document in Java. Add company logo, stamp icon or name using different colors and text effects.

• Create a new instance of Signature class and pass input document to it
• Instantiate the ImageSignOptions object and specify image signature options
• Call Sign method of Signature class instance and pass ImageSignOptions to it
• Set options to view document as HTML
• Instantiate Viewer with output file

APIs Download & Installation Instructions

You require GroupDocs.Signature & GroupDocs.Viewer namespaces to digitally sign documents in Java and view as HTML, image or in a PDF format. Explore other Java APIs for Office documents as offered by Conholdate.Total.

Get the respective assembly files from the downloads or fetch the whole package from Maven to add ‘Conholdate.Total` directly in your workspace.

Add Text Signatures to XLS in Java

Add customized text signature to a XLS document in Java using advanced text settings such as font color, size, name, text alignment and border adjustment.

• Create a new instance of Signature class and pass input document
• Instantiate the TextSignOptions object and specify text signature options
• Call sign method of Signature class instance and pass TextSignOptions to it

Image Representation of Document Pages

Apply digital signatures to a wide range of document formats and generate the image representation of the already signed document pages in PNG, JPG or BMP formats. You can easily preview the complete document as a whole or choose to display some specific pages based on page numbers or page ranges.