PDF is a widely used format used by millions of people around the world while exchanging documents. The reason the format is popular is that it makes sure all the formatting in the document is intact, and the viewer only needs a PDF reader to be able to see the document. There are tons of. PDFelement for Mac is very easy to use to insert signature in Excel on Mac including macOS 10.14. To insert signature Excel Mac, you need the best tool and the best tool is PDFelement for Mac. The good thing is that it can be easily done and just takes two steps to execute as seen below. Excel for Office 365 Word for Office 365 PowerPoint for Office 365 Excel 2019 Word 2019 PowerPoint 2019 Excel 2016 Word 2016 PowerPoint 2016 Excel 2013 Word 2013 PowerPoint 2013 Excel 2010 Word 2010 PowerPoint 2010 Excel 2007 Word 2007 PowerPoint 2007 Word Starter 2010 This article explains digital signatures (also known as digital ID), what they can be used for, and how you can use digital signatures in the following Microsoft Office programs: Word, Excel, and PowerPoint. In this article What is a digital signature? A digital signature is an electronic, encrypted, stamp of authentication on digital information such as e-mail messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered. Signing certificate and certificate authority Signing certificate To create a digital signature, you have to have a signing certificate, which proves identity. When you send a digitally-signed macro or document, you also send your certificate and public key. Certificates are issued by a certification authority, and like a driver’s license, can be revoked. A certificate is usually valid for a year, after which, the signer must renew, or get a new, a signing certificate to establish identity. Tip: For more information on obtaining a digital certificate see. What does a digital signature guarantee? • Authenticity The signer is confirmed as the signer. • Integrity The content has not been changed or tampered with since it was digitally signed. Mac asks for pin instead of password for keychain access. • Non-repudiation Proves to all parties the origin of the signed content. Repudiation refers to the act of a signer denying any association with the signed content. • Notarization Signatures in Word, Excel, or PowerPoint files, which are time stamped by a secure time-stamp server, under certain circumstances, have the validity of a notarization. To make these assurances, the content creator must digitally sign the content by using a signature that satisfies the following criteria: • The digital signature is valid. • The certificate associated with the digital signature is current (not expired). • The signing person or organization, known as the publisher, is trusted. Important: Signed documents, which have a valid time stamp, are considered to have valid signatures, regardless of the age, or revocation status, of the signing certificate. • The certificate associated with the digital signature is issued to the signing publisher by a reputable certificate authority (CA). Signature lines in Word and Excel A signature line resembles a typical signature placeholder that might appear in a printed document. However, it works differently. When a signature line is inserted into an Office file, the author can specify information about the intended signer, and instructions for the signer. When an electronic copy of the file is sent to the intended signer, this person sees the signature line and a notification that their signature is requested. The signer can: • Type a signature, or • Select a picture of an inked signature, or • Write a signature by using the inking feature of a touch-screen PC When the signer adds a visible representation of a signature to the document, a digital signature is added at the same time to authenticate the signer's identity. Important: A digitally-signed document becomes read-only to prevent modifications. Create a signature line in Word or Excel • In the document or worksheet, place your pointer where you want to create a signature line.
0 Comments
Leave a Reply. |