5 Best PDF Signing Service Choices

Given the prevalence of PDF documents in nowadays’ business world as well as education and official settings, such as tax payment, the chances are high that the question of how to electronically sign a PDF is of relevance to. Read below for five most beneficial ways to sign a PDF.


PDFliner is a no-installation-required all-round PDF tool offering functionality that reaches far beyond signing. What makes it more attractive than some dedicated services, though, is its unfussy design.

With PDFLier, the question of how to sign a PDF is easily answered across all platforms as long as you have an Internet connection and a web browser. Apart from flexible and moderately priced subscriptions, there’s a limited free signing option that can save occasional individual users a lot of money compared to pricey business-oriented solutions.

While an average pdf signing service only works with image signatures, PDFLiner is more flexible. You can use its built-in tool to directly input a handwriting using your mouse or stylus for non-compromised quality.

Why choose it:
  • no download needed;
  • highly competitive pricing;
  • works across all platforms provided that you have a browser;
  • enables you to input your handwriting as a drawing;
  • intuitive navigation.

Adobe Sign

It seems like the times when Adobe’s products were hard to learn and more complicated to navigate are long gone. Adobe Sign combines the power associated with its brand name with simplicity, being a great tool for contractors and their customers alike.

Probably the key selling point of this software is integration, in particular with Microsoft Office and much more. Adobe Sign can be accessed from any device, mobile ones being no exception, as it’s part of Adobe’s Document Cloud. You can rely on the software to monitor the status of your pdf to sign and track progress, with a wide range of workflow streamlining functions available.

Most importantly, Adobe Sign prioritizes security and legal authentication, in particular by ensuring compliance for specific industries such as healthcare.

Why choose it:
  • huge community of experienced users ready to help;
  • mobile access enabled;
  • industry-specific compliance functionality;
  • perfect Microsoft Office compatibility.


One of the most popular answers to how to sign a PDF digitally, DocuSign stands out as a dedicated e-sign product with a vast global community of users. Unlike all-round PDF tools, it prioritizes streamlined attachment of legally binding signatures.

This is achieved through wide integration, including popular business-oriented software products by Google, Apple, SalesForce, and more. The fact enables companies to incorporate this powerful signing tool into their daily operations in a smooth manner, which makes up for the relatively high price that will probably scare off non-frequent users.

DocuSign has been approved in terms of compliance with Binding Corporate Rules. These are a set of rules and policies that apply for data transfer between EU-based companies and those situated outside of Europe, their purpose being to ensure a high level of data security.

Why choose it:
  • a dedicated e-sign solution;
  • extensive integration capabilities;
  • approved for optimum security.


This aptly named product clearly prioritizes ease of use and accessibility across platforms, which can be a great benefit for individual users who need PDF signing functionality for their private purposes as well as businesses that don’t want to invest in massive integration.

The cloud-based service works astonishingly well on mobile devices. It offers all the basic signing-related features you’re likely to need, including the ability to annotate signature boxes for clarity and template functionality for repeatedly used processes.

If you only need a limited range of capabilities and are shopping on a tight budget, look no further than SignEasy’s Standard Plan. There are more advanced subscription options available as well, but we feel like these might be somewhat less versatile than other, similarly priced cloud-based software.

Why choose it:
  • accessible on the go due to cloud storage;
  • excellent mobile optimization;
  • great for simple tasks with the Standard subscription.

KeepSolid Sign

KeepSolid Sign is a team-oriented document signing service that is primarily web-based, enabling users to access documents via popular platforms such as Google Drive, iCloud, Dropbox, which offers excellent flexibility. Unlike most services that rely on the web, though, it also supports an offline mode. The downloadable version is available for Windows, Mac OS, and Android.

Given the fact that KeepSolid specialized in privacy protection and data security, it’s no wonder the product uses highly secure AES-256 encryption to prevent leaks. It also offers wide e-signature customization functionality. Tracking progress is made easy by distinct document statuses, which can also be an effective approach to managing your team’s effort. All this is accessible with a clean, no-frills user interface that keeps the number of tools to the required minimum. KeepSolid Sign also enabled template creation.

Why choose it:
  • extra-secure encryption;
  • wide functionality for collaboration aside from signing;
  • cross-platform access;
  • offline mode.

Enjoy Hassle-Free PDF Signing

When you need to sign pdf files without printing, service choice can make a huge difference. If you have any questions regarding the existing options, feel free to post them in the comments section. We also encourage you to share your favorite PDF signing tools and what they’re good for.

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