pdfDAHidePage

int32_t __stdcall pdfHidePage(PPDF IPDF, int32_t PageNum);
int32_t __stdcall pdfDAHidePage(PPDF IPDF, int32_t FileHandle, int32_t PageRef);

function pdfHidePage(const IPDF: PPDF; PageNum: Integer): Integer; stdcall;
function pdfDAHidePage(const IPDF: PPDF; FileHandle, PageRef: Integer): Integer; stdcall;

Purpose. Hide a page — per the PDF spec, there is no standard "hidden page" attribute; both are accepted for ABI compatibility.

Description. Known limitation. Both functions only range-validate PageNum/ PageRef against the page count and return success/failure accordingly — neither actually hides anything (there is nothing in the PDF format for them to set). pdfDAHidePage's FileHandle is, consistent with this volume's other "DA" (Direct Access) functions, accepted but not consulted — always validated against the current document.

Parameters.

Return value. 1 if the page number is in range; 0 otherwise. Does not indicate any page was actually hidden.

C# (P/Invoke)

public static extern int pdfDAHidePage(IntPtr IPDF, int FileHandle, int PageRef);