[Poppler-bugs] [Bug 99416] Sign PDF with digital signature

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99416

--- Comment #21 from Hans-Ulrich Jüttner <huj at froreich-bioscientia.de> ---
(In reply to Adrian Johnson from comment #15)
> +  char buf[24];
> +  time_t now = time(nullptr);
> +  size_t size = strftime(buf, 24, "D:%Y%m%d%H%M%S%z", localtime(&now));
> +  if (size >= 2 && size < 22)
> +  {
> +    // put timezone info into single quotes
> +    buf[size] = buf[size-1];
> +    buf[size-1] = buf[size-2];
> +    buf[size-2] = '\'';
> +    buf[++size] = '\'';
> +    buf[++size] = '\0';
> +    GooString gTime(buf, size);
> +    vObj.dictAdd(copyString("M"), Object(gTime.copy()));
> +  }
> 
> PDF date format uses a single quote to separate the time zone hour and
> minute, not enclose the minutes. strftime "%z" on windows returns the
> timezone name, not the offset.
> 
http://www.verypdf.com/pdfinfoeditor/pdf-date-format.htm says that the minutes
of the time zone in PDF date format are also followed by a single quote.

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