HiQPdf Library for .NET

PDF Library for .NET | HTML to PDF for .NET | Free Trial Download | Licensing

HiQPdf Library for .NET (Classic) is a fast and flexible tool for creating high-quality PDF documents and converting HTML to PDF in .NET Framework, .NET Core and .NET Standard applications.

The library uses the Classic rendering engine to convert HTML to PDF, images and SVG.

You can also create, stamp, secure, merge and split PDF documents, extract text and images from PDF documents, search text in PDF documents, convert PDF pages to images or HTML.

This package is compatible with .NET Framework, .NET Core and .NET Standard 2.0 on Windows platforms.

For applications that need to convert HTML to PDF on both Windows and Linux platforms, the HiQPdf.Next.HtmlToPdf library provides a newer and highly accurate rendering engine designed for modern HTML, CSS and JavaScript content.

The full HiQPdf Next package HiQPdf.Next can be used on Windows, Linux, Azure and Docker platforms to create, edit and merge PDF documents, convert HTML to PDF or images, convert Word, Excel, RTF and Markdown to PDF, extract text and images from PDFs, search text in PDFs and convert PDF pages to images.

Library Features

• HTML to PDF Converter to quickly create high-accuracy PDF documents from HTML content with advanced support for CSS, JavaScript, Web Fonts and SVG. The converter can automatically create a table of contents, bookmarks and internal links from the HTML document structure
• HTML to Image Converter to take snapshots of web pages and produce raster images in various formats like PNG, JPG, BMP
• HTML to SVG Converter to create high-quality vector images in SVG format from HTML
• PDF to Image Converter allows you to rasterize PDF document pages to images and produce a separate image for each PDF page or to create a multi-page TIFF image for the entire PDF document
• PDF to HTML Converter offers the possibility to create HTML documents from PDF pages and also to produce an index file for the entire document
• PDF to Text Converter can extract the text from PDF documents with various options like preserving the original text order or the reading order, marking the page breaks with special characters
• Search text in PDF documents functionality allows you to search and highlight text in PDF document pages
• Extract images from PDF to get the images embedded in PDF documents while preserving transparency
• Create PDF Documents in a classic manner laying out PDF objects like text, HTML, SVG, images and graphics to an empty document
• Security and Digital Signatures feature allows you to create encrypted, password-protected and digitally signed PDF documents
• Interactive Features like PDF forms, text notes, internal links, JavaScript actions
• Merge PDF feature allows you to combine multiple PDF documents into a single one
• Stamp PDF to apply repeating HTML, text or image content on each PDF page of a PDF document

Compatibility

The compatibility list includes the following .NET versions, platforms and application types:

• .NET Framework 2.0, 3.5, 4.0 and above
• .NET 10, 9, 8, 7, 6
• .NET Standard 2.0
• Windows platforms
• Azure Cloud Services and Azure Virtual Machines
• Web, Console and Desktop applications

Start Using HiQPdf

You can start by copying the C# code below into your application or you can start with our demo applications for .NET from downloadable product packages.

C# Code Samples for HTML to PDF

The C# code samples below show how to quickly produce PDF documents from HTML pages or HTML code and save the resulting PDF to a memory buffer, to a PDF file or send it to the browser for download when created in ASP.NET applications.

At the top of your C# source file you have to add the using HiQPdf; instruction to make available the HiQPdf namespace to your application code.

using HiQPdf;

You can use the C# code below to convert an HTML code or an HTML page from a given URL to a PDF file.

// Create the HTML to PDF converter object HtmlToPdf converter = new HtmlToPdf(); // Convert the HTML code to a PDF file converter.ConvertHtmlToFile("<b>Hello World</b> from HiQPdf !", null, "html_to_file.pdf"); // Convert the HTML page from URL to a PDF file string urlToConvert = "https://www.hiqpdf.com"; converter.ConvertUrlToFile(urlToConvert, "url_to_file.pdf");

Alternatively you can produce the PDF document in a memory buffer that you can further save to a file on the server.

// Create the HTML to PDF converter object HtmlToPdf converter = new HtmlToPdf(); // Convert the HTML code to memory byte[] htmlToPdfData = converter.ConvertHtmlToMemory("<b>Hello World</b> from HiQPdf !", null); // Save the PDF data to a file System.IO.File.WriteAllBytes("html_to_memory.pdf", htmlToPdfData); // Convert the HTML page from URL to memory string urlToConvert = "https://www.hiqpdf.com"; byte[] urlToPdfData = converter.ConvertUrlToMemory(urlToConvert); // Save the PDF data to a file System.IO.File.WriteAllBytes("url_to_memory.pdf", urlToPdfData);

The C# code below can be used in your ASP.NET Core and ASP.NET MVC application for .NET Framework to convert an HTML code to PDF in a memory buffer and then send the PDF data for download to the browser.

// Create the HTML to PDF converter object HtmlToPdf converter = new HtmlToPdf(); // Convert the HTML code to memory byte[] htmlToPdfData = converter.ConvertHtmlToMemory("<b>Hello World</b> from HiQPdf !", null); FileResult fileResult = new FileContentResult(htmlToPdfData, "application/pdf"); fileResult.FileDownloadName = "html_to_pdf.pdf"; return fileResult;

The C# code below can be used in your ASP.NET Web Forms application for .NET Framework to convert an HTML code to PDF in a memory buffer and then send the PDF data for download to the browser.

// Create the HTML to PDF converter object HtmlToPdf converter = new HtmlToPdf(); // Convert the HTML code to memory byte[] htmlToPdfData = converter.ConvertHtmlToMemory("<b>Hello World</b> from HiQPdf !", null); HttpResponse httpResponse = HttpContext.Current.Response; httpResponse.AddHeader("Content-Type", "application/pdf"); httpResponse.AddHeader("Content-Disposition", String.Format("attachment; filename=html_to_pdf.pdf; size={0}", htmlToPdfData.Length.ToString())); httpResponse.BinaryWrite(htmlToPdfData); httpResponse.End();

The C# code below can be used in your ASP.NET Core application to convert an HTML code to PDF in a memory buffer and then send the PDF data for download to the browser.

// Create the HTML to PDF converter object HtmlToPdf converter = new HtmlToPdf(); // Convert the HTML code to memory byte[] htmlToPdfData = converter.ConvertHtmlToMemory("<b>Hello World</b> from HiQPdf !", null); FileResult fileResult = new FileContentResult(htmlToPdfData, "application/pdf"); fileResult.FileDownloadName = "html_to_pdf.pdf"; return fileResult;

Free Trial Download

You can download the HiQPdf Library for .NET evaluation package from HiQPdf Downloads web page.

The evaluation package for .NET contains the product binaries and demo web, desktop and console projects with full C# code for .NET Framework and .NET Core.

Licensing

The licensing model is simple and flexible. The licenses are perpetual and there is no limit for the number of machines where you can deploy your applications using the HiQPdf library. You can find more details about licensing on Online Purchase web page.

Support

For support and questions please use the email addresses from the contact web page.