HTML to PDF allows the creation of files in PDF format from a HTML.

Besides, the component uses Apache FreeMaker templates to generate the HTML through the pipeline JSON message.

Take a look at the configuration parameters of the component:

  • File Name: name of the PDF file to be generated in the output of the component execution.

  • Body: HTML template to be interpreted to generate the PDF file (this field supports the FreeMarker template).

  • Fail On Error: if the option is enabled, the execution of the pipeline with error will be interrupted; otherwise, the execution of the pipeline continues, but the result will show a false value for the success property.

  • Secured PDF: if the option is enabled, the insertion of a password in the PDF file is allowed to generate a protected document.

  • Password: password to protect the PDF file.

  • Custom permissions: if the option is enabled, many options of access permission in the PDF file become available; otherwise, the PDF file will be generated with all the permissions.

  • Read only: access permission that defines the PDF file as "read only". If the option is enabled, all the other access permissions will be disabled.

  • Assemble document: allows pagges to be added, rotated e deleted from the file.

  • Modify: allows the file to be modified.

  • Modify annotations: allows text notes to be added or modified in the file.

  • Extract content: allows texts and images to be extracted from the file.

  • Extract for accessibility: allows texts and images to be extracted from the file for accessibility matters.

  • Print: allows the file to be printed.

  • Print degraded: allows the file to have a degraded printing.

  • Fill in Form: allows forms to be filled with interactive fields.

Messages flow

Input

The component accepts any input message, being able to use it through Double Braces.

Output

  • successful

{  "success": true,  
"fileName": "pdf_gerado.pdf", }

  • unsuccessful

{  "success": false,
"message": "Could not generate the pdf file",
"error": "java.net.IOException"}

Example of request response with error

{  "success": false,  "message": "Could not generate the pdf file",  "error": "java.net.IOException:"}

  • success: “false” when the operation fails

  • message: message about the error

  • exception: information about the occurred error

Example:

Body

<p>We have these animals:<table border=1>  
<#list animals as animal>
<tr><td>${animal.name}<td>${animal.price} Euros
</#list></table>

Therefore, in the input message an object array is received and it has the properties “name” and “price”:

[{ "name": "Dog", "price": 100},
{ "name": "Cat", "price": 100},
{ "name": "Bird", "price": 30},]

The template will make the iteration in this received array and fill the HTML:

<p>We have these animals:<table border=1>
<tr><td>Dog<td>$100 Euros<tr><td>Cat<td>$100 Euros
<tr><td>Bird<td>$30 Euros
</table>

IMPORTANT:

  • SVG

To use the SVG as HTML tag, apply the following property inside the SVG tag (xmlns="http://www.w3.org/2000/svg"):

<svg xmlns="http://www.w3.org/2000/svg" width="400" height="180">  <rect x="50" y="20" rx="20" ry="20" width="150" height="150" style="fill:red;stroke:black;stroke-width:5;opacity:0.5" />  Sorry, your browser does not support inline SVG.</svg>

  • CSS

Versions after 2.1 aren't supported.

  • IMAGES

The use of imagens in base64 format inside HTML tags isn't supported.

Eg.: <img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAA…>

You can use images with local and remote reference:

  • Local Image

<img src="image.jpg" alt="IMAGE2" >

In the example above, there must be a image file with the exact same name specified inside the src tag (image.jpg)

  • Remote Image

<img src="https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_92x30dp.png" alt="IMAGE2" >

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