Is it possible to retrieve a PDF from an iframe and submit it back to the server?
My use case is to display a PDF form to the user, and let them submit the form after filling it out. I haven't found anything indicating this is possible, but I'm remaining hopeful for the moment.
You can add a submit button inside the PDF itself while generating it, and treat the data comming from your PDF form in the same way you would deal with an HTML form.
In order to achieve this, you will need to add a button annotation to your PDF form, and attach a "submit form" action to it. See Chapter 8 - Interactive Forms of the PDF Reference Document from Adobe for more details.
You can create then an asp.net page that processes the input from the PDF form. Note that the field names of a PDF form can be used in asp.net Request object to collect the data.
If you want to submit the whole file instead, you can do so by setting a flag in the "submit-form" action that you need to add to your PDF file, but I do not recommend doing this in general since it will consume more bandwidth from your server.
Related
This is my scenario:
I have a form with some information like full name, birthday... and one input is filesupload with an auto upload option
If I use auto aupload, files will be uploaded to server before the form is submitted. If user cancels form submission, The db record is not created hence I do not need the file uploaded anymore and this lead to trash files on my server.
Is there any way I can handle this so i do not have too many trash files in the upload folder on the server?
Form your question i think what you want to do is to be able to delete a file if the the form data is not submitted and the file has auto-uploaded right?...
These are two ways to achieve this:
1. Do not auto-upload in the first place
There is no real reason why you should upload the file itself to server FILE_UPLOAD_FOLDER. Instead, convert the file into a base64 string which you can save in your db instead of using the file-path as link. When you want to render you can convert the string back to a file
2. Create a method that listens to the cancel button click.
I would assume that you have a variable that holds FILE_UPLOAD_PATH, hence just create a javascript function to delete the file and put it in the onClick attribute of the cancel button.
I need to extract freehand writing from submitted PDF form or submit the writing as Base64 string (the form would submitted as XML in that case). i wold need to access the writing using PDF JavaScript, serialize it and submit it along other field values. how do I access the writing sing in-PDF JavaScript (http://www.adobe.com/devnet/acrobat/javascript.html)? Thanks
You can submit the handwriting created by the pencil tool as XML (XFDF format) to your server by setting the submit button to submit field data and comments. There's no need to use JavaScript if the user will just be pressing the button.
If you do need to access the functionality through a script, you can achieve the same thing by using this.submitForm() and setting the bAnnotations parameter to true. See link for further documentation.
http://help.adobe.com/en_US/acrobat/acrobat_dc_sdk/2015/HTMLHelp/index.html#t=Acro12_MasterBook%2FJS_API_AcroJS%2FDoc_methods.htm%23TOC_submitFormbc-106&rhtocid=_6_1_8_23_1_105
The "ink" annotations will be stored in the XML as a series of vertices that represent the strokes of the pencil tool. These can be imported into another PDF or rendered to an image for OCR... the Google Vision API does a pretty nice job of interpreting handwriting.
I have a pdf on website, which i want, client download it or i will email them and they fill it, and when they click on submit button in the pdf, it send all the form field data to my webpage, so i can enter all the information on my database.
My Webpage using ASP.net as server side language
I have created a pdf by using "Nitro PDF" in nitro pdf there is a option to Submit form on click as a FDF,XFDF,html.
I have tried html but that doesn't work , so i collect all the fields information by using javascript an send information via GET method, mentioned below
// Obtain the value from the first field
var Fname = getField("firstName").value;
// Obtain the value from the second field
var Mname = getField("middleName").value;
// Obtain the value from the third field
var Lname = getField("lastName").value;
app.launchURL("http://techchef.org/test.php?Fname="+Fname+"&Lname="+Lname, true);
but the problem in the above mention method is, i have more than 48 fields & cant use GET method..
so i try to find out the POST method in javascript which can be workable in the pdf and i tried the below mention code which i found from this link Submit pdf form fields to a HTTP POST request but it doesn't work...It only send empty information
Code For POST Method
app.submitForm("http://example.com/test.php, true);
then i research about FDF, and i found FDF Kit, but when try this i found it only works if i ask user to fill the form of the pdf with out downloading..So in this way i can not able to send the pdf to the clients via email.
Please guide me how can i receive the filled data on my webpage on the click of "send" button (please advice if i can use a POST method or some thing else)
Main problem is values written in input elementss disseapear after page reload (submit , refresh etc.)
I have a completed form ... /form element. Traditionally, I can insert a php line.
<input value="<?php if(isset($_POST['foo']))echo $_POST['foo'] ?>">
This solves the submit part. However, I feel that this is the worst solution, in my case. I have hundreds of input elements in my form. There are even some inputs to produce input tables. Number of input elements are so much that i became curious about finding a work around.
Is there a way to store input->values before the submit operation and inject them after page reload?
So that, the user can upload a file, file will be parsed by php core. And when the page reloaded both user originated inputs and file originated values are exist.
To simplify:
After "file submit & read & append file values to form", user shouldn't need to fill inputs that s/he already filled. I need an idea to achieve this, different then "inserting a php line to every single input element."
In such a situation I could recommend sending the file via AJAX and handling the response of that thereafter and then only injecting the values from the process and uploaded file when you get the response from the server.
Alternatively you could use localstorage or cookies to persist the information. However both local storage and cookies have a defined limit on what they can store. Cookie can only store 4KB in total which doesn't allow much.
Without uploading via AJAX, you could write a javascript function to find all inputs with jQuery/javascript and save their values in localstorage and on new page load to a check to see if there are any present and inject them back into the same inputs based on id/class/ etc with jQuery making sure to delete the localstorage values when done.
I have a html page with a form ,with few input fields, check box,radio buttons.
User can fill up the forms.
Is there any way , the user will be able to download the form (with the filled in data) in pdf format ?
1 more question, Any way to save the filled in form in html format or image format (of course File-> save of browser and screenshot are there) using java script code or html code , on a button click ?
I have tried http://code.google.com/p/jspdf/ , didnot able to get through it.
Thanks
[Adding a few more points]
if generating a pdf file using JS/HTML is not possible then ....
A bit more into it
Currently I am creating a server using C# application and when user requests a html page , I am sending the same to user.
that html page contains a form , which is needed to be filled
and I want the user to save the filled form in pdf format.
For now , I am able to process the static html form -> convert to pdf and provide the download to user ,
But can't get a way to enable the user to save the filled in form.
When the user presses the submit button , I can get all the filled in data using httpResponce object(GET/Post Method)!! , is there a way I can generate a pdf file using this httpResponce object parameters?
Or any way I can send the current html page content (e.g. getting all the contents in a div using jquery/javascript) and send it back, when user presses the submit button, in that way I can generate the pdf file at server side and provide a download - PDF format
Please ask , if I am not able to describe my question !!
jsPDF is an open-source library written by our lead developer, James,
for generating PDF documents using nothing but Javascript. You can use
it in a Firefox extension, in Server Side Javascript and with Data
URIs in some browsers. http://snapshotmedia.co.uk/blog/jspdf
Using only javascript to generate the PDF is not possible at this time. Using server-side scripting, it is possible to send the data to a server and let the server generate the PDF which is then sent to the user.
(Update): Using PHP, you can generate PDFs in the server-side using dompdf - HTML to pdf converter. Here is a demo: http://eclecticgeek.com/dompdf/docs_0-6-0/demo.php
In Google Chrome, there is a "Print to PDF" option. If you don't want to do any programming on the server side, you can just ask your users to access the page using Google Chrome. After filling out the form, they print the page as PDF.