THotPDF.SetLoadedKeywords Method

Sets the Keywords field in the information dictionary of the loaded PDF document to update the document's keyword metadata

Declaration

procedure SetLoadedKeywords(const AKeywords: AnsiString);

HPDFDoc

Name	Purpose
`AKeywords`	The keyword string to write to the Keywords entry in the document information dictionary; multiple keywords are usually separated by spaces or commas

关键词字符串的格式由调用方自行决定，PDF 规范未强制规定分隔符，但惯例是空格分隔
This method directly overwrites the existing Keywords value; if you need to append keywords, you should read the original value first, concatenate them, and then pass it in
The save method must be called after modification, otherwise changes are only kept in memory and will be lost upon program exit