Workflow-specific products Content, decks, briefs, proposals, legal, and sales each have a clearer buying path.

Review before delivery Draft, edit, collaborate, approve, and export in the same workspace.

Security + procurement path Security policy, support, and Azure Marketplace buying are public.

Microsoft AI Partner Azure Marketplace G2 Trustpilot

Gixo Folio · deterministic artifact

EPUB Preflight Checker

Check EPUB structure, reading order, metadata, XML safety, offline resources and ZIP expansion limits.

No accountNo AI callNothing storedRate limited

Input

EPUB file Maximum compressed size: 5 MB.

Current public contract

The table and answers are derived from the active artifact definition.

Aspect	Current behavior	Why it matters
Input	EpubUpload	The selected public artifact definition controls the accepted fields or file.
Processing	Deterministic construction; no AI model call	The artifact is calculated or assembled from the supplied values.
Free output	A complete structural preflight report.	This is the complete attributed output available without an account.
Product boundary	Saved publishing workspace and final export workflow.	The paid boundary is stated separately from the free result.

Do I need an account to use EPUB Preflight Checker?

No. The public tool runs without an account.

Does this builder call an AI model?

No. It uses deterministic parsing, calculation, and rendering.

Is my input stored?

No. The public tool does not save the submitted input.

What does the paid product add?

Saved publishing workspace and final export workflow.