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FormForge vs Nitro PDF Pro

FormForge

pdf-forms.tools

Nitro PDF Pro

gonitro.com

Side by side

FigureFormForgeNitro PDF Pro
Price fromFree$15/mo
Free planYes—
Free trial—Yes
Open source——
WebYesYes
WindowsYesYes
macOSYesYes
LinuxYes—
iOSYesYes
AndroidYes—
API—Yes
Plans published13
Spec score · PDF Form Software8.3 (#8)9.0 (#3)
IntegrationsThe privacy policy identifies self-hosted Rybbit for analytics and Netlify hosting; it names no form-submission or workflow integrations.Official integrations include Microsoft 365, Salesforce, Google Drive, OneDrive, Dropbox, SharePoint, iManage, Alfresco and M-Files.
SupportThe maker invites bug reports and feature requests by email at [email protected].Nitro PDF Standard includes 24/7/365 support; advanced 24/7 tech support is listed for plans with two or more users.
What it doesFormForge is a browser-based PDF form builder for turning PDFs into fillable forms.Nitro PDF is an AI-assisted editor for creating, editing, converting, organizing, securing and signing PDF documents.

Plans

FormForge

  • FreeFree

FormForge pricing →

Nitro PDF Pro

  • Nitro PDF Standard$15 a month
  • Nitro PDF Classic$270, paid once
  • Nitro PDF PlusPriced on request

Nitro PDF Pro pricing →

In their own words

FormForge

FormForge is a free browser-based tool for turning existing PDFs into fillable forms. Its AI detects fields in flat PDFs and scans, running locally in the browser through WebAssembly. Users can add text, checkbox, radio button, dropdown, signature, date, and number fields, then run Form doctor’s 21 AcroForm checks with one-click fixes. CSV data can be used to generate batches of completed PDFs. Signatures can be drawn or typed in a handwritten style; an optional cryptographic signature can be added on export. Processing and drafts stay on the device in the browser. The installable PWA works offline once its resources are cached, but opening or reloading the page requires a connection. Exports include AcroForm PDFs and ZIPs of filled PDFs, which the site says open in several desktop and mobile PDF readers. FormForge does not edit underlying PDF page content or reorder, delete, rotate, or merge pages. It has no fixed file-size or page-count limit, though practical limits depend on device memory. The free plan requires no account or credit card and has no watermark or page limit.

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Nitro PDF Pro

Nitro PDF Pro has no write-up on Specifiction yet; its figures are above.

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