public byte[] Convert(PdfConvertSettings settings)
{
Guard.ArgumentNotNull(() => settings);
if (settings.Page == null)
{
throw Error.InvalidOperation("The 'Page' property of the 'settings' argument cannot be null.");
}
try
{
var converter = CreateWkConverter(settings);
var input = settings.Page.Process("page");
if (settings.Page.Kind == PdfContentKind.Url)
{
return(converter.GeneratePdfFromFile(input, null));
}
else
{
return(converter.GeneratePdf(input, null));
}
}
catch (Exception ex)
{
Logger.Error("Html to Pdf conversion error", ex);
throw;
}
finally
{
TeardownContent(settings.Cover);
TeardownContent(settings.Footer);
TeardownContent(settings.Header);
TeardownContent(settings.Page);
}
}
internal HtmlToPdfConverter CreateWkConverter(PdfConvertSettings settings)
{
// Global options
var converter = new HtmlToPdfConverter
{
Grayscale = settings.Grayscale,
LowQuality = settings.LowQuality,
Orientation = (PageOrientation)(int)settings.Orientation,
PageHeight = settings.PageHeight,
PageWidth = settings.PageWidth,
Size = (PageSize)(int)settings.Size,
PdfToolPath = FileSystemHelper.TempDir("wkhtmltopdf")
};
if (settings.Margins != null)
{
converter.Margins.Bottom = settings.Margins.Bottom;
converter.Margins.Left = settings.Margins.Left;
converter.Margins.Right = settings.Margins.Right;
converter.Margins.Top = settings.Margins.Top;
}
var sb = new StringBuilder(settings.CustomFlags);
// doc title
if (settings.Title.HasValue())
{
sb.AppendFormat(CultureInfo.CurrentCulture, " --title \"{0}\"", settings.Title);
}
// Cover content & options
if (settings.Cover != null)
{
var path = settings.Cover.Process("cover");
if (path.HasValue())
{
sb.AppendFormat(" cover \"{0}\" ", path);
settings.Cover.WriteArguments("cover", sb);
if (settings.CoverOptions != null)
{
settings.CoverOptions.Process("cover", sb);
}
}
}
// Toc options
if (settings.TocOptions != null && settings.TocOptions.Enabled)
{
settings.TocOptions.Process("toc", sb);
}
// apply cover & toc
converter.CustomWkHtmlArgs = sb.ToString().Trim().NullEmpty();
sb.Clear();
// Page options
if (settings.PageOptions != null)
{
settings.PageOptions.Process("page", sb);
}
// Header content & options
if (settings.Header != null)
{
var path = settings.Header.Process("header");
if (path.HasValue())
{
sb.AppendFormat(" --header-html \"{0}\"", path);
settings.Header.WriteArguments("header", sb);
}
}
if (settings.HeaderOptions != null && (settings.Header != null || settings.HeaderOptions.HasText))
{
settings.HeaderOptions.Process("header", sb);
}
// Footer content & options
if (settings.Footer != null)
{
var path = settings.Footer.Process("footer");
if (path.HasValue())
{
sb.AppendFormat(" --footer-html \"{0}\"", path);
settings.Footer.WriteArguments("footer", sb);
}
}
if (settings.FooterOptions != null && (settings.Footer != null || settings.FooterOptions.HasText))
{
settings.FooterOptions.Process("footer", sb);
}
// apply settings
converter.CustomWkHtmlPageArgs = sb.ToString().Trim().NullEmpty();
return(converter);
}