Transparent background for image stamp or signature

Q: My scanned signature image has a white opaque background.  Is it possible to make the background transparent when creating an image stamp in PDF Studio? A: While there’s no way to change the background of an existing image to be transparent from within PDF Studio, PDF Studio supports transparency in stamps so you can use an image […]

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PDF Studio Trusted Certificate Authorities for Digital Signatures

Q: What certificate authorities are available for authentication in PDF Studio? A: Below is the list of trusted root certificates (also called authorities or identities) when signing PDF documents or verifying digital signatures with PDF Studio. This is the list of authorities trusted by default in Java but it is also possible to add your own trusted authorities in PDF Studio. […]

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PDF Signing Certificate: Affordable Alternative to Adobe CDS

Do I need to buy an Adobe CDS certificate to sign PDF documents? It can be confusing for PDF users to decide what certificate to buy to secure their PDF documents.There is not much information out there because certificate authorities and companies like Adobe make good money selling certificates. Adobe just wants you to buy […]

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Digitally Signing PDFs with smartcard USB token

Smartcard / USB tokens provide a safe physical support to store certificate private keys required to apply digital signatures on a document. They add an additional layer of protection to the signing process, as not only do users need the password but also the physical hardware token to access and use their certificate. It is the technology used […]

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