| Provider / plan | Published price | PDF editor | AI / summaries | Request signatures | Platforms | Typical usage model |
|---|---|---|---|---|---|---|
| KarmaPDF + optional Sign | $79 lifetime editor; Sign from $7/month | Included | Local summaries included | Optional: 15–200 envelopes/month | Windows & macOS; mobile apps planned | Local-first editor; cloud used only for requested signing |
| Adobe Acrobat Pro | $19.99/month, annual billed monthly | Included | Advanced AI emphasized in Acrobat Studio at $24.99/month | Included; plan limits vary | Desktop, mobile, web | Subscription with desktop, online tools, and 100 GB storage |
| Foxit PDF Editor+ | $159.99/user/year | Included | 300 AI credits/month; paid add-on available | 150 envelopes/year | Windows, macOS, web, iOS, Android | Annual subscription with cloud DMS |
| Nitro PDF Plus | $15/user/month, $180 billed annually | Included | Plan-dependent | Nitro Sign plans sold separately or bundled by plan | Primarily desktop and web services | Annual subscription |
| Smallpdf Pro | $15/month | 30+ tools | AI tools included | Sign.com Premium included | Web, mobile, Windows app | Cloud-centered subscription |
| PDF Expert Premium | $79.99/year; $139.99 lifetime listed | Included | PDF Copilot included | Fill and sign; not positioned as a full multi-recipient audit workflow | Mac, iPhone, iPad | Apple-focused yearly or lifetime license |
Prices exclude taxes and promotional pricing. “Lifetime” terms, AI quotas, signature limits, operating-system support, and included services can change. Verify the provider’s checkout before purchasing. KarmaPDF is in private beta and should not be treated as a feature-for-feature substitute for every enterprise Acrobat, Foxit, Nitro, Smallpdf, or PDF Expert workflow.
Official sourcesAdobe Acrobat plan comparisonFoxit PDF Editor pricingNitro pricingSmallpdf pricingPDF Expert pricing
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