Looking for a way to add a user-uploaded PDF file to a Word document generated in the browser.
The user fills out a questionnaire and has the option to upload a document. At the end, the user clicks on a button and a Word document is generated with the gathered data (using docxtemplater).
The JSON data used for the doc generation is not stored anywhere after these steps.
Is there
a) a library that allows the uploaded file (which will be a PDF) to be added to/embedded in the generated Word document in the front end or
b) a way to display the file in the Word document by referencing the data URL in the template?
Example JSON (after generating the document):
"attachmentUpload": [
{
"name": "Example.pdf",
"type: "application/pdf",
"content": "data:application/pdf;base64,[.......]"
}
]
All I have found so far are libraries to merge two or more PDF files.
Any pointers would be highly appreciated!
Thanks!
Related
Given a PDF (with multiple pages), a page (stream) and a index , how can i replace the page at target index with my stream and save the pdf ?
public Stream ReplacePDFPageAtIndex(Stream pdfStream,int index,Stream replacePageStream)
{
List<Stream> pdfPages= //fetch pdf pages
pdfPages.RemoveAt(index);
pdfPages.Insert(index,replacePageStream);
Stream newPdf=//create new pdf using the edited list
return newPdf;
}
I was wondering if there is any open source solution or i can roll my own with ease , given the fact that i just need to split the pdf in pages , and replace one of them.
I have also checked ITextSharp but i do not see the functionality that i require.
I would like to know, how can i reuse one template (with one page inside and some variables) multiple times a XWPFDocument object.
My idea is:
load the template once in a XWPFDocument as an template-object
clone/create/copy the template-object with all his styles and headers etc
fill the clone with content
add this clone to the destination-XWPFDocument
I got this work for one single page only.
When i try to clone/create/copy the template-object it will lose all his style informations.
How to copy a paragraph of .docx to another .docx withJava and retain the style
How to copy some content in one .docx to another .docx , using POI without losing format?
POI probably does not support this out of the box, but I have done a similar thing in my project poi-mail-merge, it works with the underlying XML to repeatedly replace markers in a template Microsoft Word document and combine the results into one resulting document.
So it basically duplicates the template document multiple times into the resulting document.
See here for how I do it there, basically I work on the XML body text and do replacements/changes there and then append it onto the result document.
POI Mail Merge propably helps in other cases but in my case it doesn't work.
My Workaround is to update my Template-XWPFDocument to the needed structure first, save it temporarily and read it back into a XWPFDocument-object.
Here the steps:
Read the template-file into a XWPFDocument
Read the records from data-file e.g. csv
Calculate the numbers of pages related to the data-records
Get the Bodyelements-Objects from the Template-XWPFDocument
Create new Bodyelements (depending to the numbers of pages) in the Template-XWPFDocument and replace them with the same Objects that we get before
Save the updated Template-XWPFDocument temporarily
Read the temporarily saved Template into a XWPFDocument
Replace all placeholder and fill them with your CSV-Data
Hope this helps somebody
I have a template file that I fill using PHPExcel. But I have terms and conditions that are saved in database with html tags and inline css. Now these terms and conditions are subject to change so I cant put it into template. So only solution is t take it from database and put it inside created template but I have no clue how to open xlsx file and insert .html file inside it perhaps as second sheet.
This is my current code:
$objPHPExcel = new PHPExcel();
$objPHPExcel = PHPExcel_IOFactory::load($inputFileName);
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->save($outputFileName);
And of course there is lot of code that specifically deal with writing data to excel file but that is working perfectly.
Could someone please explain how could I go about doing it.
Thanks
You can't simply insert an HTML file inside an xlsx file
The latest develop branch of PHPExcel does include an HTML to Rich Text wizard that will take a block of HTML markup and convert it to a Rich Text object that can then be stored in a cell, and /Examples/42richText.php demonstrates how it can be used. At present, this only covers basic markup tags (<br />, <font>, <b>, <i>, <em>, <strong>, <sub>, <sup>, <ins>, <del>, etc) and doesn't handle inline style in any way. However, it might provide the basis for what you want with some additional work.
I create a PDF document with EVO PDF library from a HTML page using the code below:
HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter();
byte[] outPdfBuffer = htmlToPdfConverter.ConvertUrl(url);
Response.AddHeader("Content-Type", "application/pdf");
Response.AddHeader("Content-Disposition", String.Format("attachment; filename=Merge_HTML_with_Existing_PDF.pdf; size={0}", outPdfBuffer.Length.ToString()));
Response.BinaryWrite(outPdfBuffer);
Response.End();
This produces a PDF document but I have another PDF document that I would like to use as cover page in the final PDF document.
One possiblity I was thinking about was to create the PDF document and then to merge my cover page PDF with the PDF produced by converter but this looks like an inefficient solution. Saving the PDF and loading back for merge seems to introduce a unnecessary overhead. I would like to merge the cover page while the PDF document produced by converter is still in memory.
The following line added in your code right after you create the HTML to PDF converter object should do the trick:
// Set the PDF file to be inserted before conversion result
htmlToPdfConverter.PdfDocumentOptions.AddStartDocument("CoverPage.pdf");
I am reading a PDF which has editable fields and the fields can be edited by opening it through Adobe Reader. I am using PDFBox APIs to generate an output PDF with data filled for the editable fields in input PDF. The output PDF can be opened using Adobe Reader and I am able to see the field values but I am unable to edit those fields directly from Adobe reader.
There is also a JIRA ticket for this issue and it is unresolved according to this link :
https://issues.apache.org/jira/browse/PDFBOX-1121
Can anybody please tell me if this got resolved? Also, if possible please answer the following questions related to my question:
Is there any protection policy or access permission that I need to explicitly set in order to edit the output PDF from Adobe reader?
Every time I open the PDF that was written to using pdfbox APIs, I get this message prompt:
" The document has been changed since it was created and use of extended features is no longer available...."
I am using PdfBox 1.8.6 jar and Adobe reader 11.0.8. I would really appreciate if anybody could help me with this issue.
Code snippet added to aid responders in debugging :
String outputFileNameWithPath = "C:\myfolder\testop.pdf";
PDDocument pdf = null;
pdf = PDDocument.load( outputFileNameWithPath );
PDDocumentCatal og docCatalog = pdf.getDocumentCatalog();
PDAcroForm acroForm = docCatalog.getAcroForm();
//The map pdfValues is a collection of the data that I need to set in the PDF
//I am unable to go into the details of my data soutce
// The key in the data map corresponds to the PDField's expanded name and data
// corresponds to the data that I am trying to set.
Iterator<Entry<String, String>> iter=pdfValues.entrySet().iterator();
String name=null;
String value=null;
PDField field=null;
//Iterate over all data and see if the PDF has a matching field.
while(iter.hasNext()) {
Map.Entry<String, String> currentEntry=iter.next();
name=currentEntry.getKey();
value=currentEntry.getValue();
if(name!=null) {
name=CommonUtils.fromSchemaNameToPdfName(name);
field=acroForm.getField(name);
}
if( field != null && value!=null )
{
field.setValue( value ); //setting the values once field is found.
}
}
// Set access permissions / encryption here before saving
pdf.save(outputFileNameWithPath);
Thanks.
The document has been changed since it was created and use of extended features is no longer available....
This indicates that the original form has been Reader-enabled, i.e. an integrated Usage-Rights digital signature has been applied to the document using a private key held by Adobe which tells the Adobe Reader that it shall make some extra functionality available to the user viewing that form.
If you don't want to break that signature during form fill-ins with PDFBox, you need to make sure that you
don't do any changes but form fill-ins and
save the changes as incremental update.
If you provided your form fill-in code and your source PDF, this could be analyzed in more detail.