Side by side

LightPDF vs SysTools PDF Merge Tool

LightPDF

8.8#2 in pdf editorsFrom $1.33 a month

Free planAndroidiOSWebAPI

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SysTools PDF Merge Tool

6.2#22 in pdf merger software$39, paid once

macOSWindows

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What both publish

Fact	LightPDF	SysTools PDF Merge Tool
Founded	2018	2007

LightPDF plans

Free PlanFree
Monthly Plan$5.99 a month
Yearly Plan$15.99 a year
Lifetime Plan$39.99 a month
Lifetime Plan$39.99, paid once

SysTools PDF Merge Tool plans

Full Version License$39, paid once
Business License$99, paid once
Enterprise License—

Pick LightPDF if…

LightPDF suits people who need PDF editing and conversion alongside document chat and other AI tools. Its free plan is limited to web use, while paid plans list web, mobile, and desktop access.

Pick SysTools PDF Merge Tool if…

You want what its maker publishes above — check its page for the details.

Charts they share

PDF Merger Software