Comparisons
Best tools for private AI use and PDF forms
Rankings follow the criteria printed on each page. PiBye is listed only where it genuinely fits.
The best tools to remove personal information before using AI
There is no single best tool; it depends on where your data is. For text typed into ChatGPT in Chrome, Caviard. For client documents on a Mac, PiBye. For developers building their own pipeline, Presidio, which is free and open source. For enterprises de-identifying data at scale, Limina (formerly Private AI). For organisation-wide data loss prevention, Nightfall or Strac.
The best ways to flatten a PDF form on a Mac, compared
For one ordinary form, Preview’s File > Print > Save as PDF is free and good enough. For a Mac user who edits PDFs daily, PDF Expert. For teams already on Adobe, Acrobat Pro. For batches of client forms or XFA government forms, PiBye’s Lock PDF. Avoid online flatteners for forms containing personal details, because they upload the file.
Run AI locally, or redact documents before cloud AI?
Running a model locally with Ollama or LM Studio keeps documents entirely on your computer, at the cost of hardware and, for most machines, weaker models than ChatGPT or Claude. Redacting first lets you keep using the strongest cloud models, but the provider still receives the redacted copy and detection can miss details. Choose local AI for maximum isolation, redaction for maximum model quality.
Redaction software for lawyers: filings versus AI work
Lawyers need two different kinds of redaction. For court filings and disclosure, use a permanent redaction tool: Adobe Acrobat Pro for most practices, Redactable for cloud workflows with audit trails, Objective Redact or CaseGuard for high-volume or multimedia work. For using AI on client documents, permanent redaction destroys what you need back; a stand-in and restore tool such as PiBye fits that job.
Redaction vs pseudonymization: which should you use before AI?
Use pseudonymization when the AI's work has to come back to the client: consistent stand-ins keep the document readable and a locally kept key restores the names. Use permanent redaction when the document is going to a court, a counterparty or the public and must never be reversed. Generalization suits facts the task needs only roughly. Manual find-and-replace works for short, simple text but misses variants.