DigiSigner is a simple PDF viewer tool with focus on creating digital and e-signatures in PDF documents. DigiSigner main features: - DigiSigner is a PDF viewer so you can always open and inspect the document you are going to sign. - DigiSigner produces completely Adobe Reader compliant digital signatures, which can be verified in Adobe Reader and vice versa. - Certificate generation is also supported in DigiSigner. - Place the signature wherever you want in the document using your mouse. - Create invisible and professionally looking visible signatures with DigiSigner. - DigiSigner shows and verifies existing digital signatures in the document. You can also verify them just by clicking on them. - Your certificates can be easily added or removed and DigiSigner always memorizes all the changes you made. - DigiSigner lets you quickly open PDF documents using right-click mouse menu. - You can simultaneously open and sign as many PDFs as you want. - There are versions for Mac and Linux. DigiSigner is perfect tiny tool to view and digitally sign your PDF invoices or business contracts.