HTML to PDF not generating PDF file

[Dasgupta]

Hello,

I'm trying to convert HTML to PDF, But it's not generating PDF file. There is no error or exception observed.

1. Sample HTML files attachned
2. Code Snippet:

public static void main(String args[]) {
try {

com.spire.license.LicenseProvider.setLicenseKey(LICENSE_KEY);

// Invoke the custom method HtmlToString() to convert HTML file to string
String htmlString = HtmlToString(HTML_PATH);

// Specify the output file path
String outputFile = TEMP_PATH + "HtmlToPdfhindi4.pdf";

// Specify the plugin path
String pluginPath = PLUGIN_PATH;

// Set the plugin path
HtmlConverter.setPluginPath(pluginPath);

// Convert the HTML string to PDF
HtmlConverter.convert(htmlString, outputFile, true, 100000, new Size(700, 900), new PdfMargins(0),
LoadHtmlType.Source_Code);
System.out.println("outputResource.getFile().length() " + new File(outputFile).length());

} catch (Exception e) {
e.printStackTrace();
}

}

// Convert a HTML file to string
public static String HtmlToString(String filePath) throws IOException {

// String path = filePath;

Path path = Paths.get(filePath);
File file = new File(filePath);
FileReader fileReader = new FileReader(file);
BufferedReader bufferedReader = Files.newBufferedReader(path, StandardCharsets.UTF_8);

StringBuilder stringBuilder = new StringBuilder();
String temp = "";
while ((temp = bufferedReader.readLine()) != null) {
stringBuilder.append(temp + "\n");
}

bufferedReader.close();

String str = stringBuilder.toString();
System.out.println("String " + str);

return str;
}

3. Spire PDF version:
Manifest-Version: 1.0
Extension-Name: spire.pdf
Implementation-Title: spire.pdf for java
Implementation-Version: 4.8.7
Implementation-Vendor: E-iceblue Co., Ltd
Implementation-Vendor-Id: com.spire

4. Application Type: Spingboot JDK 1.8

[Herman.Yan]

Hi,

Thanks for your feedback.
I tested your Html file by using the following code, it could converted successfully. I have packaged my program to a JAR file. Please unzip it, put the plugins file at the same folder, and then use "java -jar ..." to run it at your side. It is based on JDK 1.8. If your issue still exists after testing, please provide your system information (E.g. Win10, 64 bit) and region setting (E.g. China, Chinese) for further testing.

Code: Select all

        HtmlConverter.setPluginPath("plugins");
        // Convert the HTML file to PDF
        HtmlConverter.convert("working.html", "output.pdf", true, 100000, new Size(700, 900), new PdfMargins(0));


Best Regards,
Herman
E-iceblue support team

[Dasgupta]

Hello,

I have extracted, added plugins to extracted folder and tested the code.
But, it's giving output.pdf file which is pdf version of working.html.
I have provided working.html (working as expected) and not_working.html (not generating pdf of HTML and having issues with this) in PoC.zip

Can you also check with not_working.html file.

Please find attachment for performed steps and details of OS and Regions setting.

[Annika.Zhou]

Hello,

Thank you for your feedback.

We are on Chinese Tomb-Sweeping Day holiday today, there is currently no testing environment for you. After I return to the office tomorrow, I will use your testing environment to test the project and provide you with the results.

Sincerely,
Annika
E-iceblue support team

[Herman.Yan]

Hello,

Thank you for your feedback.
Actually, my previous 'JAR file' has checked the 'not_working.html' file, since I modified the file name to 'working.html'. You can check the output PDF content. Meanwhile, you can change your other html file name to this name and use my JAR file to test them. If there is any other issues, just feel free to contact.

Best Regards,
Herman
E-iceblue support team

[Dasgupta]

Hello,

When I ran attached html with your test.jar as 'java -jar test.jar' i can get pdf file generated.

Where as when i try to generate in local with

Code: Select all

public static void main(String args[]) {
      try {
         com.spire.license.LicenseProvider.setLicenseKey(LICENSE_KEY);
         String htmlString = HtmlToString(HTML_PATH);
         String outputFile = TEMP_PATH + "genrated.pdf";
         String pluginPath = PLUGIN_PATH;
         // Set the plugin path
         HtmlConverter.setPluginPath(pluginPath);
         System.out.println("outputFile " + outputFile);
         HtmlConverter.convert(htmlString, outputFile, true, 100000, new Size(700, 900), new PdfMargins(0));
         System.out.println("outputResource.getFile().length() " + new File(outputFile).length());
      } catch (Exception e) {
         e.printStackTrace();
      }

   }

   // Convert a HTML file to string
   public static String HtmlToString(String filePath) throws IOException {
        String path = filePath;
        File file = new File(path);
        FileReader fileReader = new FileReader(file);
        BufferedReader bufferedReader = new BufferedReader(fileReader);
        StringBuilder stringBuilder = new StringBuilder();
        String temp = "";
        while ((temp = bufferedReader.readLine()) != null) {
            stringBuilder.append(temp + "");
        }
        bufferedReader.close();
        String str = stringBuilder.toString();
        return str;
    }

it gives me below error

Code: Select all

class com.spire.pdf.packages.sprLyB: Illegal characters in path.
com.spire.pdf.packages.sprBdc.spr  (Path.java:293)
com.spire.pdf.packages.sprOla.spr  (Unknown Source)
com.spire.pdf.packages.sprFJa.spr  (Unknown Source)
com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
com.liferay.rbi.rbiHtmlToPdfSpire.portlet.SpireMain.main(SpireMain.java:47)
   at com.spire.pdf.packages.sprBdc.spr  (Path.java:293)
   at com.spire.pdf.packages.sprOla.spr  (Unknown Source)
   at com.spire.pdf.packages.sprFJa.spr  (Unknown Source)
   at com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
   at com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
   at com.liferay.rbi.rbiHtmlToPdfSpire.portlet.SpireMain.main(SpireMain.java:47)

In local I'm using below jdk

Code: Select all

openjdk version "1.8.0_362"
OpenJDK Runtime Environment (Zulu 8.68.0.20-SA-win64) (build 1.8.0_362-b08)
OpenJDK 64-Bit Server VM (Zulu 8.68.0.20-SA-win64) (build 25.362-b08, mixed mode)


[Herman.Yan]

Hi,

Thanks for your message.
Your error could be avoided by adding "LoadHtmlType.Source_Code". But It also can not generate the PDF file. I have logged this issue into our tracking system with the ticket SPIREPDF-5913, our Dev team will do further investigation and fixing. Once there is any update, we will keep you informed. Sorry for the inconvenience caused.We suggest that you use my previous code to do the conversion.If there is any other issues, just feel free to contact.

Best Regards,
Herman
E-iceblue support team

[Dasgupta]

Hello,

Do you have any updates on this issue? Please share.

[Herman.Yan]

Hi,

Thank you for following up.
Sorry that there is no update at present. Our development team is working hard to fix this issue. How about your testing result when you test my previous code in your project?

Best Regards,
Herman
E-iceblue support team

[Dasgupta]

Hello,

Below is the result of testing with your code.

Hello,

When I ran attached html with your test.jar as 'java -jar test.jar' i can get pdf file generated.

Where as when i try to generate in local with

Code: Select all

public static void main(String args[]) {
      try {
         com.spire.license.LicenseProvider.setLicenseKey(LICENSE_KEY);
         String htmlString = HtmlToString(HTML_PATH);
         String outputFile = TEMP_PATH + "genrated.pdf";
         String pluginPath = PLUGIN_PATH;
         // Set the plugin path
         HtmlConverter.setPluginPath(pluginPath);
         System.out.println("outputFile " + outputFile);
         HtmlConverter.convert(htmlString, outputFile, true, 100000, new Size(700, 900), new PdfMargins(0));
         System.out.println("outputResource.getFile().length() " + new File(outputFile).length());
      } catch (Exception e) {
         e.printStackTrace();
      }

   }

   // Convert a HTML file to string
   public static String HtmlToString(String filePath) throws IOException {
        String path = filePath;
        File file = new File(path);
        FileReader fileReader = new FileReader(file);
        BufferedReader bufferedReader = new BufferedReader(fileReader);
        StringBuilder stringBuilder = new StringBuilder();
        String temp = "";
        while ((temp = bufferedReader.readLine()) != null) {
            stringBuilder.append(temp + "");
        }
        bufferedReader.close();
        String str = stringBuilder.toString();
        return str;
    }

it gives me below error

Code: Select all

class com.spire.pdf.packages.sprLyB: Illegal characters in path.
com.spire.pdf.packages.sprBdc.spr  (Path.java:293)
com.spire.pdf.packages.sprOla.spr  (Unknown Source)
com.spire.pdf.packages.sprFJa.spr  (Unknown Source)
com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
com.liferay.rbi.rbiHtmlToPdfSpire.portlet.SpireMain.main(SpireMain.java:47)
   at com.spire.pdf.packages.sprBdc.spr  (Path.java:293)
   at com.spire.pdf.packages.sprOla.spr  (Unknown Source)
   at com.spire.pdf.packages.sprFJa.spr  (Unknown Source)
   at com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
   at com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
   at com.liferay.rbi.rbiHtmlToPdfSpire.portlet.SpireMain.main(SpireMain.java:47)

In local I'm using below jdk

Code: Select all

openjdk version "1.8.0_362"
OpenJDK Runtime Environment (Zulu 8.68.0.20-SA-win64) (build 1.8.0_362-b08)
OpenJDK 64-Bit Server VM (Zulu 8.68.0.20-SA-win64) (build 25.362-b08, mixed mode)


[Herman.Yan]

Hi,

Thanks for your message.
I noticed that you did test my previous JAR file which I used the following code.

Code: Select all

    public static void main(String[] args) throws IOException {
        String pluginPath = "plugins";
        HtmlConverter.setPluginPath(pluginPath);
        HtmlConverter.convert("not_working.html", "output.pdf", true, 100000, new Size(700, 900), new PdfMargins(0));
    }


What I mean is that you directly use this code for your project. I look forward to your test results.

Best Regards,
Herman
E-iceblue support team

[Dasgupta]

Hello,

do we have any update on the above issue?
This issue mainly seems with HTML with large sizes.

I tried below code:

Code: Select all

         com.spire.license.LicenseProvider.setLicenseKey(LICENSE_KEY);
              String htmlString = HtmlToString(HTML_PATH);
         String outputFile = TEMP_PATH + "genrated.pdf";
         String pluginPath = PLUGIN_PATH;
         HtmlConverter.setPluginPath(pluginPath);
         HtmlConverter.convert(htmlString, outputFile, true, 100000, new Size(700, 900), new PdfMargins(0));

and I am getting below error:

Code: Select all

class com.spire.pdf.packages.sprLyB: Illegal characters in path.
com.spire.pdf.packages.sprBdc.spr  (Path.java:293)
com.spire.pdf.packages.sprOla.spr  (Unknown Source)
com.spire.pdf.packages.sprFJa.spr  (Unknown Source)
com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
com.liferay.rbi.rbiHtmlToPdfSpire.portlet.SpireMain.main(SpireMain.java:51)
   at com.spire.pdf.packages.sprBdc.spr  (Path.java:293)
   at com.spire.pdf.packages.sprOla.spr  (Unknown Source)
   at com.spire.pdf.packages.sprFJa.spr  (Unknown Source)
   at com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
   at com.spire.pdf.htmlconverter.qt.HtmlConverter.convert(Unknown Source)
   at com.liferay.rbi.rbiHtmlToPdfSpire.portlet.SpireMain.main(SpireMain.java:51)

Also when I tried with below code with small and large size HTML Small HTML processed successfully whereas large HTML is not processed with no error. (where as content of both pdf are same only repetitive content in large pdf)

Code: Select all

com.spire.license.LicenseProvider.setLicenseKey(LICENSE_KEY);
              String htmlString = HtmlToString(HTML_PATH);
         String outputFile = TEMP_PATH + "genrated.pdf";
         String pluginPath = PLUGIN_PATH;
         HtmlConverter.setPluginPath(pluginPath);
         HtmlConverter.convert(htmlString, outputFile, true, 100000, new Size(700, 900), new PdfMargins(0), LoadHtmlType.Source_Code);

Attaching sample html.

[Herman.Yan]

Hi,

Thanks for your feedback.
I have tested your HTML file and it is true as you mentioned that 'working. html' can be converted to PDF, while 'not_working'big. html' cannot be converted. I have already informed our developers of this phenomenon. Since the conversion process used the third-party plugins, our developers need more time to investigate. At the same time, I found that the first parameter of the HtmlConverter. convert() method is directly set to the position of 'not_working'big. html', as shown in the screenshot below.

1.png

We can generate a PDF file. You can firstly use this way instead.

Best Regards,
Herman
E-iceblue support team

[Dasgupta]

Hello,

I tried with the file path of not_working_big.html as 1st param for HtmlConverter. convert() method and it worked, But we are using this HTML to PDF library in API where we get HTML string which we pass for conversion. So, in this case, when the HTML string is large it doesn't convert it to PDF.

I tried saving the HTML string to a temp file first and then providing the file URL to the method but again it will consume space on the server.

[Lisa.Li]

Hello,

Thank you for your feedback.
We have understood that the method of setting "not_working_big.html" as 1st param for HtmlConverter.convert() isn't available for your situation. Regarding the issue of directly loading HTML string, our Dev team are working on it now. Once we receive their any feedback, we will inform you promptly. Thank you for your patience.

Sincerely,
Lisa
E-iceblue support team