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15

Spawning Template Pages to a Location Relative to Another Page

Community Beginner ,
Dec 27, 2023 Dec 27, 2023

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I have a form that is two related but separate report forms.  Both forms are usually, but not always, filled in together, with some information common to both forms. The advantage to having both forms together in a single PDF is that the person filling out the form does not have to enter information common to both forms more than once. There are also Invoice Templates so the user can generate either one invoice or two separate invoices.

 

Each form has Template pages that are added as needed. The format of the PDF is:

 

Report 1

Additional Comments (Template)

Photos (Template)

Invoice (Template)

Report 2

Additional Comments (Template)

Photos (Template)

Invoice (Template)

 

When I spawn Template pages, the spawned pages all go to the end of the document. I need the Templates for Report 1 to immediately follow Report 1 and the Templates for Report 2 to immediately follow Report 2.  The Photo Page Templates are usually replicated anywhere from two to 12 times for each report. It is very important to have the Photo pages with thier respective report, not all together at the end of the document.

 

I also need to set the security to allow filling the form, etc. so that the users of the form cannot modify the form or have access to the JavaScript. I am able to get the pages to spawn to where I need them if the security is off or set to "Any except extracting pages", but not at any othr security level.

 

I think I know what the problem is with what I was doing and the security.  Not realizing the security limitation, I generated a new page, then overlayed the spawned page onto it. The reason I did that was that I could not figure out how to get the spawned pages to spawn to a particular location without them being overlays. My solution worked until I set the security. Apparently, it is “this(newPage(currentpage+1)” that is causing the problem (I think that's what the problem is, but I'm not sure?).  Also, I looked at the Adobe JavaScript Reference. It only shows examples of spawned template pages being overlays. This is the JavaScript I used:

 

// Get the template name

var templateName = "PhotosWind";

// Get the current page number

var currentPage = this.pageNum;

// Insert a blank page after the current page

this.newPage(currentPage+1);

// Overlay the template page on the new blank page

this.spawnPageFromTemplate(templateName, currentPage+1, true);

 

Acrobat generate an error saying that security setting will not allow that. When that didn’t work, I tried this:

var templateName = "PhotosWind";

var currentPage = this.pageNum;

this.getTemplate(templateName).spawn({currentPage:+1, bOverlay: false, bRename: true});

 

That puts the spawned page at the end of the document instead of the page following the current page (where the button to spawn the page is located).  So, I am back to my original problem of not being able to spawn a page to a particular location.    

 

Any help will be greatly appreciated. Thanks for taking the time to read this! 

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How to , JavaScript , PDF forms

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correct answers 1 Correct answer

Community Expert , Jan 02, 2024 Jan 02, 2024

 

 

Ok so first, add a hidden form field next to the button that runs the spawn code.

Name the field "SpawnPage".

 

Add this code to the beginning of the script that does the spawning.  It gets the next page value

 

 

var nSpPage = this.getField("SpawnPage").value;
var nCurrentPage = event.target.page;
if(!isNaN(nSpPage) && (nSpPage > nCurrentPage ))
    nCurrentPage = nSpPage ;

 

 

 

 

Then add this code to the end of the script that does the spawning. It saves the next page value

 

this.getF
...

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Community Expert ,
Dec 28, 2023 Dec 28, 2023

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Pages are spawned at page number specified in the spawn function. 

This code is wrong:

 

.spawn({currentPage:+1, bOverlay: false, bRename: true});

 

"currentPage" is not an argument name for the spawn function.  The name of the argument is "nPage"

Both of these lines are correct and do exactly the same thing. 

 

.spawn({nPage:currentPage+1, bOverlay: false, bRename: true});

.spawn(currentPage+1, false, true);

 

 

 

Thom Parker - Software Developer at PDFScripting
Use the Acrobat JavaScript Reference early and often

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Community Beginner ,
Jan 02, 2024 Jan 02, 2024

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Thanks Thom. I tried the code that you provided. It puts the spawned Template pages in the proper location, but creating multiple copies using a button-click to add each copy results is the field names all being the same on each copy. If I use a simple Spawn command without any arguments, the copies are all at the end of the document, but all have unique field names. Do you know how I can have the spawned pages follow the page with the button and have each copy have unique field names? Thanks again for your help.

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Community Expert ,
Jan 02, 2024 Jan 02, 2024

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Yes, put the new spawned page after the last spawned page.  To do this you'll need to know where the last page was spawned. There are a few ways to do this.

A simple one is to keep track of the last spawned page in a form field.   To start out the page number field value should be 0 or empty.  If its empty or zero the script uses the page number of the spawn button, but if it's a real page number, then the script uses the field value.    

 

 

Thom Parker - Software Developer at PDFScripting
Use the Acrobat JavaScript Reference early and often

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Community Beginner ,
Jan 02, 2024 Jan 02, 2024

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Thanks Thom, I understand your logic, but the challenge for me is the actual JavaScript code. I've been through the Adobe JavaScript Reference and other sources for help, but this is just confounding me. I'm not a programmer. I'm trying to teach myself JavaScript. I've been able to figure out most things so far, but a few things like this one have me stumped. If you could provide an example, I'd greatly appreciate it. Thanks again for the help.  

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Community Expert ,
Jan 02, 2024 Jan 02, 2024

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Ok so first, add a hidden form field next to the button that runs the spawn code.

Name the field "SpawnPage".

 

Add this code to the beginning of the script that does the spawning.  It gets the next page value

 

 

var nSpPage = this.getField("SpawnPage").value;
var nCurrentPage = event.target.page;
if(!isNaN(nSpPage) && (nSpPage > nCurrentPage ))
    nCurrentPage = nSpPage ;

 

 

 

 

Then add this code to the end of the script that does the spawning. It saves the next page value

 

this.getField("SpawnPage").value = nCurrentPage + 1;

 

 

Thom Parker - Software Developer at PDFScripting
Use the Acrobat JavaScript Reference early and often

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Community Beginner ,
Jan 03, 2024 Jan 03, 2024

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That worked! Thank you Thom!! I really appreciate your help! You'd laugh if I showed you the convoluted JavaScript I came up with, but that didn't work anyway.  

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Community Expert ,
Jan 03, 2024 Jan 03, 2024

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Sorry, wrong post.

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