如何压缩使用 HTML-Renderer 库 c# 生成的 PDF 文件

Question

i have the following code which is working fine. I am generating pdf file through html content using library HTML-Randerer . Problem is that generated pdf file size become increases up to aprox 8MB some time.and i wanted to compress that file as i have to send this pdf to some of the client . I have searched but did not find any solution.

Note:"Html content has no image just tag and textual data only "

Library: HTML Renderer

Question: How to compress the pdf file using HTML Renderer is there any method ?

Code

public void GenerateHtmlToPdf(string htmlContent, string sFilePath)
    {
        PdfDocument pdf = PdfGenerator.GeneratePdf(htmlContent, PageSize.A4, 25);
        pdf.Save(sFilePath);

    }

Thanks!

Answer 1

The PDF "foo.pdf" you provide contains 33 pages, each pages is between 150 kB to 350 kB in size.

Each page draws hundreds of lines. Maybe the library draws four lines around each cell. The same visual effect could be achieved with a few, long lines which would reduce the file size considerably.

There are many PDF Optimizer and PDF Compacter around, but I'm afraid they won't do much good with that file.

Answer 2

It seems you can't do it with pdfsharp. And because you don't use images, there is no help there either in that direction. You may read up on alternatives in another post Compress existing PDF using C# programming