How to Merge and Split PDF Files

PDF files have the excellent feature of being sign-able without the need of printing, physically signing, scanning, and then mailing the digital document back. Before delving into PDF signatures though, it is important to know the difference between an electronic signature and a digital signature. Each one is used for diverse purposes and has a grade of difficulty, or more like a series of steps to follow.

Electronic signatures (E-sign PDF)

Electronic signatures are basically an image of your actual signature overlaid or on top of a specific area on a PDF document. It allows for convenient delivery or receiving of signed documents because it takes away the need for a scanner. It can be done with various applications but the easiest is using pdf.co since it is free and fast. Other third-party applications, on the other hand, may require you pay the full version or pay a monthly fee before accessing their signature capabilities.

How to put a signature on PDF for Windows users

Go to pdf.co and select “Sign PDF Online”. Upload the PDF file you wish to sign by clicking on “Choose File”, “From Dropbox”, or “From URL”. You will be taken to secondary options and customizations. Your signature will be added and you can download your newly signed PDF afterward. PDF.co requires no additional software, but you will have to create a free account beforehand or during the signing procedure. The website itself offers https SSL secure protocol security for all uploaded files and they are permanently removed from all servers. This helps keep your documents confidential and best of all secure from prying eyes. The upload itself is fast and you can also choose to sign a PDF from Dropbox, from your computer or from an URL.

How to sign PDF files for Mac users

Mac operating systems have integrated document-signing features. It is slightly easier but involves the same procedure, minus the optional use of an online website. You can upload your signature by signing directly on your trackpad or do it via pdf.co as outlined above.

Digital signatures

A digital signature or a digital ID is your own personal digital identification. It will contain the following information: name, company name, email address, serial number, and an expiration date. It has a public key and a private key; the former encrypts data while the latter unlocks it. When signing PDF files, you will use the private key to apply your digital signature.

Creating a digital signature

You can only create a digital signature using Adobe Acrobat. In the “Edit” menu, choose “Signatures” from “Preferences” and click on “More” for “Identities & Trusted Certificates” category to show up. Afterward, select “Add ID” and follow the instructions.

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