PDF form to HTML conversion in angular 2? - node.js

In my application I am uploading a PDF file after uploading, I should display the information present in PDF file to a HTML form we are using angular 2 for frontend and node js for backend. Can any one help me with this.
Please remember PDF to HTML.


You can do one thing. Convert your pdf to a JSON. Use pdf2json.
pdf2json is a node.js module that parses and converts PDF from binary to json format, it's built with pdf.js and extends it with
interactive form elements and text content parsing outside browser.
The goal is to enable server side PDF parsing with interactive form
elements when wrapped in web service, and also enable parsing local
PDF to json file when using as a command line utility.
perform npm install pdf2json
Create an empty JSON whose key values will be the main headings from the pdf like a customer, age etc. Its values are obtained from the uploaded pdf.
Using this JSON values fill your form, on saving the form using, node.js save it to your DB. Is this what you want?


Simply what you need is to render a PDF in your application.
You could use this library ng2-pdf-viewer
Almost all the basic functionalities are available as properties to this component. You could manipulate it to your requirement.

Related

Node js - converting pdf to valid version

I have various pdf files which fail a certain logic process due to them being invalid.
I use - https://www.pdf-online.com/osa/validate.aspx
and when I validate a pdf, I get a message that says the pdf does not conform to the PDF 1.3 standard or 1.4 standard.
I'm familiar with converting the pdf to text/json/buffer and then rebuild it and save it as a new pdf file, but was wondering is there an alternative? Because each pdf is different and is basically user input and the rebuilding it using jspdf for example, will be different for every file.
Is it possible to convert such pdf document to conform to the PDF 1.3/1.4 standards?

Convert any document, image, text file into PDF

I want to convert any documents or image or text file into PDF for all the OS.
I tried the approach with node-msoffice-pdf, and its working fine for Windows OS but not working in other OS.
Question:
How to convert docs, images, textfile to pdf in nodejs?

I used wkhtmltopdf from years to manage pdf conversion.
https://github.com/devongovett/node-wkhtmltopdf
You can either render an html file and pass it to the module, or render a pdf directly from an url.

If fidelity/conversion quality is important to you, for Word documents (doc/docx) you could try our freemium https://www.npmjs.com/package/#nativedocuments/docx-wasm which will perform the conversion locally (ie where node is running), without the need to LibreOffice etc.

How to send data into an OpenOffice word template from NodeJS

How can I get data passed from NodeJS into placeholders of a OpenOffice template file? Is there any npm packages available to parse an ODT template file so that I can print data into it?
I have a 13 page word file (a template for printing reports) and I want to populate it with certain details from the DB into the different pages of this file. I like to pass the data in JSON format.
What I know is how to write into a plain text/excel file from node, but I want to write into the placeholders of a word template without loosing other parts of the template. I did the same with VBScript (with microsoft word template) in the past. Now want to achieve the same using nodejs. Please share with me your ideas..thanks

Attach an image to an existing PDF at the right position

So, here's the thing, we have a bunch of pdf forms for users on our website to fill out, we have a submission button inside every pdf form that sends the filled data through a http post method. We are already doing a pre-filled form, where the user fill general information on a html form, data that are used to generate a partially filled multiple pdf files, so whatever the pdf form the user has selected to fill, all of them will be regenerated having the pre-filled information that he just typed on the html form. I accomplish this by using pdftk (http://www.pdflabs.com/docs/pdftk-man-page/) that enables me to just do that. But we get to a point that to make this more efficient, the user must be able to draw their signature on the html side at the pre filled form stage, so we are using signature-pad for this (http://thomasjbradley.ca/lab/signature-pad/), than we create an image from the canvas that the plugin generates. But as each pdf has its own position for the signature, we must insert a placeholder into the pdf that'll be replaced for the signature image. So I came up with the idea to create a disabled text field on the pdf with the name of "signature", so through a nodejs application with the pdf2json module (https://github.com/modesty/pdf2json) I can parse the pdf form and get the position (x,y,w,h) of that particular field, being able to attach an image over the text field placeholder. So the problem is that pdftk don't give me support to attach an image to an existing pdf or even attach it in a certain position, I tried to find a nodejs module that would enables me to do that, but the only worthing nodejs module that I found was pdfkit (http://pdfkit.org/) but it only works creating a new pdf, not editing an exiting one, I looked into pdfkit source code and I discarded it because I realize that it wont work to my case of an existing pdf. So I came to a long way, got to the final stage of this implementation, came to the last step to get this working, and I'm just stack.
This is the output that I have from the pdf2json module for nodejs that is helping with the placeholder approach.
{
page: 7,
index: 317,
name: 'signature',
type: 'alpha',
x: 43.806640625,
y: 14.64195833333333,
w: 30.546828125000005,
h: 1.9339166666666756
}
If someone know any server application that I could run through an unix command at my server to attach an image over an existing pdf document, it'll fit my needs, don't need to be an exclusively nodejs module.
Obs.: I already checked it out the adobe echosign product, but it doesn't fit our needs, it's not free and don't solve our problem of attaching a signature to multiple pdf files from a single html form.

I realize that I could use the nodejs module pdfkit to generate a new blank PDF with the signature in the right position and just over the two pdfs, having the blank pdf with the signature image on the top like a stamp. I could do this with pdftk by command line:
pdftk form.pdf stamp signature.pdf output form-signed.pdf
There's another free application tool like pdftk that I just found out, and it's pdfjam. Also, if you can't use nodejs module pdfkit (different from the application pdfkt) to generate a new pdf with an image to the right spot, you have the stampTK tool (http://www.pdflabs.com/tools/stamptk-the-pdf-stamp-maker/) where you can parse through command line the image to be a stamp in an existing pdf, but this tool is paid (not much, and its worth it), but as I have the pdfkit module for nodejs that enables me to do just that along side the pdfkt application for free, I'm using that, and I also have more control of multiple signatures on the pdfkit module for nodejs. Hope this answer helps someone.

Exporting data from JSon

We are creating a map application that has a list view of the resultant set using JSON and jQuery and presenting the result to the user. How can we give the user the ability to download the result as an Excel file/CSV file?

Assuming a web application...
Convert JSON to CSV
Present It as an HTTP response.
You mentioned JSON and jQuery. I assume this is being used on the client side? There are a number of utilities for making the JSON-to-CSV conversion depending on the language you would want to use. Here are some examples.
Javascript/jQuery
PHP
Python

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