private void DrawHeader(HtmlToPdfConverter htmlToPdfConverter, PdfUrl urls)
{
string headerHtmlUrl = urls.HeaderUrl;
htmlToPdfConverter.PdfHeaderOptions.HeaderBackColor = Color.White;
HtmlToPdfElement headerHtml = new HtmlToPdfElement(headerHtmlUrl);
headerHtml.NavigationCompletedEvent += new NavigationCompletedDelegate(headerHtml_NavigationCompletedEvent);
htmlToPdfConverter.PdfHeaderOptions.AddElement(headerHtml);
headerHtml.NavigationCompletedEvent += new NavigationCompletedDelegate(headerHtml_NavigationCompletedEvent);
void headerHtml_NavigationCompletedEvent(NavigationCompletedParams eventParams)
{
float headerHtmlWidth = eventParams.HtmlContentWidthPt;
float headerHtmlHeight = eventParams.HtmlContentHeightPt;
float headerWidth = htmlToPdfConverter.PdfDocumentOptions.PdfPageSize.Width - htmlToPdfConverter.PdfDocumentOptions.LeftMargin -
htmlToPdfConverter.PdfDocumentOptions.RightMargin;
float resizeFactor = 1;
if (headerHtmlWidth > headerWidth)
{
resizeFactor = headerWidth / headerHtmlWidth;
}
float headerHeight = headerHtmlHeight * resizeFactor;
if (!(headerHeight < htmlToPdfConverter.PdfDocumentOptions.PdfPageSize.Height - htmlToPdfConverter.PdfDocumentOptions.TopMargin -
htmlToPdfConverter.PdfDocumentOptions.BottomMargin))
{
throw new Exception("The header height cannot be bigger than PDF page height");
}
htmlToPdfConverter.PdfDocumentOptions.DocumentObject.Header.Height = headerHeight;
}
}
private void DrawFooter(HtmlToPdfConverter htmlToPdfConverter, PdfUrl urls)
{
string footerHtmlString = File.ReadAllText(urls.FooterUrl);
string footerHtmlUrl = urls.FooterUrl;
HtmlToPdfVariableElement footerHtmlWithPageNumbers = new HtmlToPdfVariableElement(footerHtmlString, footerHtmlUrl);
htmlToPdfConverter.PdfFooterOptions.AddElement(footerHtmlWithPageNumbers);
}
// POST api/values
public void GeneratePdf([FromBody] PdfUrl urls)
{
HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter();
htmlToPdfConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";
htmlToPdfConverter.PrepareRenderPdfPageEvent += new PrepareRenderPdfPageDelegate(htmlToPdfConverter_PrepareRenderPdfPageEvent);
htmlToPdfConverter.TableOfContentsOptions.AutoTocItemsEnabled = true;
htmlToPdfConverter.TableOfContentsOptions.Title = "Table of Contents";
string backgroundColor = "background-color:white;";
string level1TextStyle = "color:black; font-family:'Times New Roman'; font-size:20px; font-weight:bold; font-style:normal;";
htmlToPdfConverter.TableOfContentsOptions.SetItemStyle(1, level1TextStyle);
for (int i = 1; i <= 6; i++)
{
htmlToPdfConverter.TableOfContentsOptions.SetItemStyle(i, backgroundColor);
htmlToPdfConverter.TableOfContentsOptions.SetPageNumberStyle(i, backgroundColor);
}
htmlToPdfConverter.PdfDocumentOptions.PageBreakBeforeHtmlElementsSelectors = new string[] { ".break-before" };
htmlToPdfConverter.PdfDocumentOptions.PageBreakAfterHtmlElementsSelectors = new string[] { ".break-after" };
htmlToPdfConverter.PdfDocumentOptions.TopMargin = 30;
if (!urls.HeaderUrl.IsEmpty())
{
htmlToPdfConverter.PdfDocumentOptions.ShowHeader = true;
DrawHeader(htmlToPdfConverter, urls);
}
if (!urls.FooterUrl.IsEmpty())
{
htmlToPdfConverter.PdfDocumentOptions.ShowFooter = true;
DrawFooter(htmlToPdfConverter, urls);
}
byte[] outPdfBuffer = htmlToPdfConverter.ConvertUrl(urls.ContentUrl);
HttpContext.Current.Response.AddHeader("Content-Type", "application/pdf");
HttpContext.Current.Response.AddHeader("Content-Disposition", string.Format("{0}; filename=Getting_Started.pdf; size={1}", "attachment", outPdfBuffer.Length.ToString()));
HttpContext.Current.Response.BinaryWrite(outPdfBuffer);
HttpContext.Current.Response.End();
}
