THotPDF.LoadFromFile

THotPDF

Loads an existing PDF file.

Delphi 语法:

function LoadFromFile ( FileName: TFileName ): Integer;

function LoadFromFile ( FileName: TFileName; const Password: AnsiString ): Integer;

C++ 语法:

int __fastcall LoadFromFile ( AnsiString FileName );

int __fastcall LoadFromFile ( AnsiString FileName, System::AnsiString Password );

说明

Call  LoadFromFile to load an existing PDF file. Function LoadFromFile returns count of pages in the loaded file.

对于 RC4-40 或 RC4-128 Standard encrypted PDFs，请使用 password 重载。HotPDF 会验证 user 或 owner password，在内存中解密已加载 strings 和 streams，清除已加载加密状态，并允许 SaveLoadedDocument 写入未加密副本。不受支持的 encryption revisions 会抛出异常

导入现有 PDF objects 时，HotPDF 会在内部存储 name values 前解码 ISO 32000-1 PDF name #XX escape sequences。/PANTONE#20216#20CVC、/lime#20Green 和 /The_Key_of_F#23_Minor 等名称在文档稍后复制或保存时，会按其预期字节值保留

See also: LoadFromStream, DecryptLoadedDocument