how to apply a free digital signature in libreoffice

HOW TO APPLY A FREE DIGITAL SIGNATURE IN LIBREOFFICE PDF

If you want a company to vouch for you so your software can be trusted on ANY user's computer. So, self signing is typically used either for testing, or where you actually already have control over the user's computing infrastructure (such as on a corporate intranet, and you are developing 'in house' software - because you can then also install a certificate for the 'vouch-er' - a.k.a the Issuer). If your signature file already exists in the file system as a PNG with a transparent background, its a snap to get it onto a page, change the size and move it into place in Draw.

HOW TO APPLY A FREE DIGITAL SIGNATURE IN LIBREOFFICE PDF

LibreOffice Draw will open a PDF and allow you to insert an image. Google Docs' drawing tool can be used to add a signature to your document, but it's more secure to use an add-on, like DocuSign or HelloSign. If you SELF SIGN (using the instructions at the link you provided), then when you distribute your program, it will still be considered untrusted because you are vouching for yourself - which makes no sense really. Im surprised to find the premier free office software for Linux mentioned nowhere on this page. DRAWBACKS The private key must be kept in a secured manner.3 The process of generation and verification of digital signature requires considerable amount of time.3 For using the digital signature the user has to obtain private and public key, the receiver has to obtain the digital signature certificate also.3 17. Their details (digital certificate) are already installed on most peoples machines, they come with Windows/Mac OSX/Linux/iOS etc.Įxamples of some of these organisations are Verisign, Thawte and so on. With signing, an organisation must essentially 'vouch' for you, digitally. Click OK to add the public key to the saved file.

You see again the Digital Signatures dialog, where you can add more certificates if you want. In the Select Certificate dialog, select your certificate and click OK. Click Add to add a public key to the document. Sure - using the method known as 'self signing'. After saving, you see the Digital Signatures dialog.

How to apply a free digital signature in libreoffice