pdfCheckPageAnnots

int32_t __stdcall pdfCheckPageAnnots(PPDF IPDF);

function pdfCheckPageAnnots(const IPDF: PPDF): Integer; stdcall;

Purpose. Scan every page's annotation list for structurally malformed entries (not a resolvable PDF dictionary, or missing the mandatory /Subtype//Rect keys).

Description. Iterates every page's CreatedAnnots, counting an entry as defective if it doesn't support IPdfDict at all, or does but is missing /Subtype or /Rect. This is a pure read-only diagnostic — it does not repair or remove anything it finds; a non-zero result flags a document integrity problem for the caller to investigate separately (e.g. via manual inspection or pdfDeleteAnnotation).

Parameters.

Return value. The count of structurally malformed annotation entries found across the whole document; -1 if IPDF is invalid; 0 means every annotation is structurally sound.

C# (P/Invoke)

public static extern int pdfCheckPageAnnots(IntPtr IPDF);