Digitally Sign WMF Documents in Java (Code Example)

Add Digital Signatures to WMF in Java

Add custom digital signatures to WMF documents in Java based on PFX certificate files. The all-in-one electronic signature API easily integrates with your Java application to give you a personalized document signing experience using a few lines of code.

Instantiate Signature with (WMF) as input document
Instantiate DigitalSignOptions object with certificate & password details
Call sign method of Signature class and pass DigitalSignOptions to it

Work with WMF Signature API

You require GroupDocs.Signature namespace to digitally sign documents in Java & J2SE applications. Use signature manipulation features to customize sign, search and signature verification processes, manage eSignature colors, styling and overall appearance.

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

Add Text Signatures to WMF in Java

Add customized text signature to a WMF 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

eSign Remotely Located Documents

The document eSign API enables you to load & display remotely located documents from various cloud document storage sources such as stream, local disk, URL, FTP, Amazon S3, and Azure Blob storage. Using document information extraction feature - fetch the basic information about the source document file (WMF) along with extracting other valuable document information such as file type, file size, pages count, page height and width etc.

Add Image Signatures to WMF in Java

Using Conholdate.Total for Java - insert custom image as an electronic signature to a WMF 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

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.

Using advanced document previewing features - easily hide digital signatures from the signed documents while generating the document preview.

What is WMF file format?

WMF (Windows Metafile Format) is a popular vector graphics file format that was originally created by Microsoft. WMF files are used to store 2D vector and bitmap images, including drawn objects and text. They are commonly created in other programs and then imported into various Microsoft applications, such as Word, PowerPoint, and Publisher. WMF files are known for their versatility and compatibility with a wide range of programs and operating systems.

One of the primary advantages of WMF files is that they are highly scalable. They can be resized without any loss of quality, making them ideal for use in a variety of applications, including print design and desktop publishing. WMF files can also be edited and modified using a variety of software programs, including Adobe Illustrator and CorelDRAW.

Despite their popularity, WMF files have been superseded by the Enhanced Metafile (EMF) format, which provides additional functionality and features. The EMF format is designed to provide better support for more advanced graphics, such as gradients, patterns, and transparency. However, WMF files are still widely used and remain a popular choice for many designers and professionals.

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Digitally Sign WMF in Java