HTML file to PDF file, deal with base64,svg picture problem solution.

HTML file to PDF file, error when processing base64,svg images

[Fangping]

import mlreportgen.dom.*;

import mlreportgen.utils.html2dom.*

rpt = Document('Myhtml','pdf');

% Preprocess the HTML file in advance

preppedHTMLFile = prepHTMLFile('Myhtml',"mypreppedHTML.html");

htmlFile = HTMLFile(preppedHTMLFile);

% Add the file to the rpt file

append(rpt,htmlFile);

close(rpt);

delete('mypreppedHTML.html');

rptview(rpt.OutputPath);

[Rahul]

Hi @Fangping,

Could you share the '.html' file with the base 64 image as it would help in reproducing the issue. Thanks.

Answer 1

[Rushikesh]

Hello @Fangping,

I understand that you are getting error while preparing HTML file for conversion to MATLAB Report Generator DOM using “prepHTMLFile” function.

In the “prepHTMLFile” function, it's crucial to include the full file name with the ‘.html’ extension. If your HTML file is named "Myhtml.html," ensure you use the complete name, including the extension, to avoid errors.

The function “prepHTMLFile(inputFile, outputFileName)” creates a prepared HTML file with the name specified by ‘outputFileName’. In your scenario, you have ‘outputFileName’ as "mypreppedHTML.html" and ’inputFile’ as "Myhtml" without the .html extension. This omission can result in an error message stating, "HTML File Myhtml does not exist." To prevent this, use the correct syntax:

>> prepHTMLFile("Myhtml.html", "//output_file_name.html");

I have attached sample HTML file containing base 64 encoded image for more understanding. Above updated code works well on attached HTML file to generate PDF..

For further information on the “prepHTMLFile” function, please refer to the MATLAB documentation at the following link: https://www.mathworks.com/help/rptgen/ug/mlreportgen.utils.html2dom.prephtmlfile.html