Have a question or running into an issue? Check the FAQs below or send us a message.
F-Cubed works with PDF forms — both fillable (AcroForm) and flat/scanned PDFs. You can also upload images of forms (JPG, PNG) and the AI will detect the fields using vision.
You provide the source data — either by chatting with the agent, pasting text, or uploading reference documents. The AI maps that data to the correct fields on the form using context and field labels.
Yes. After the AI fills the form, you can review every field and ask the agent to correct or update any value before downloading the final PDF.
FairPDF+ processes documents with local AI on your Mac. FairPDF is a manual PDF editor. F-cubed BYOK and the web app use cloud services for AI requests; relevant document content is sent to the provider. FairPhoto uses local models after you download the optional engine and model files.
Yes. FairPDF is $10, FairPDF+ is $20, F-cubed BYOK is $12, and FairPhoto is $29.99, all one-time USD app purchases. API provider charges for F-cubed are separate. Existing web subscriptions are separate; contact us below for help changing or cancelling one.
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Send us a message with the app name and your macOS version. Please avoid including sensitive document content.