How can I determine if a PDF file exist?

There's no direct way of verifying if a file exists in Acrobat's JS. I think the app.openDoc() method is your best chance. You can try to open the file using openDoc, hide it, and then immediately close it. If no exception is thrown then the file exists. Otherwise, just dismiss the exception and continue.

JavaScript has a [url=https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Statements/try...catch]'try...catch'[/url] statement that allows one to run possible error producing code and catch the error if thrown. One can then drop the error into the bit bucket or handle the problem as needed.

Thanx as usual for your responses I have used the Try Catch method and had soome success but failing when trying to open documents from an array.

Code Below; (Excuse my newbiew code writing)

function Gtest(cName, nPage)
{
aFiles = new Array("_Map_A.pdf","_Map_B.pdf","_Map_C.pdf","_Map_D.pdf","_Map_E.pdf","_Demo.pdf","_Bus.pdf","_Spend.pdf");
var aPathComps = this.path.split("/"); //Path
var myFileName = aPathComps.pop(); //Filename
var fileNmRoot = myFileName.split(".").shift(); //Root Filename
var strNewPath = aPathComps.join("/"); // Append path to File to Insert

for ( var i=0; i < aFiles.length; i++) { //Loop through Array
var fileNmNew = fileNmRoot + aFiles[i] // File to Insert
console.println(fileNmNew);
var cnewfile = strNewPath + "/" + fileNmNew // Combine All
console.println(cnewfile);
}
for ( var i=0; i < aFiles.length; i++) {
var iffileexists = 1;
try{

//*********************
// This is where it starts to fall over?
// it will not open the documentsd from the array
//**********************

var otherDoc = app.openDoc(cnewfile[i]);
}catch(e){
iffileexists = 0;
}
if (iffileexists = 1)
{
otherDoc.closeDoc();
this.insertPages({nPage:this.numPages-1,cPath:cnewfile[i]});
}
}}

Try printing cnewfile[i] to the console and make sure that you got the path right.

Already tried that and paths are correct

Mark Green

Could you maybe post one of them here?
Also, this line is incorrect:
if (iffileexists = 1)
You're using the assignment operator instead of the comparison one.
But that should not cause this problem.

/C/AAA_Pdf/Hexham_5k_Map_A.pdf
/C/AAA_Pdf/Hexham_5k_Map_B.pdf
/C/AAA_Pdf/Hexham_5k_Map_C.pdf
/C/AAA_Pdf/Hexham_5k_Map_D.pdf

Mark

Have you set the 'disclosed' property of the PDF's being opened to true?

This document property was added in version 5.05 and is required to be 'true' in a PDF being opened by JavaScript. See the Acrobat JS API Reference for more information.

Not sure about the disclosed property but I have re-written the code to open each file individually (not through the array loop) and it works fine opens all the documents.
It is only when I try to open them the array loop that it fails.

For my own purposes the second script I wrote is fine, but as there does not seem to be any other tools around to perform this task I thought having an array loop is much cleaner and might be useful for other users.

New Program that works: *********************

var aPathComps = this.path.split("/"); //Path
var myFileName = aPathComps.pop(); //Filename
var fileNmRoot = myFileName.split(".").shift(); //Root Filename
var strNewPath = aPathComps.join("/"); // Append path to File to Insert
//*** Map_A
var fileNmNew = fileNmRoot + "_Map_A.pdf" // File to Insert
var cnewfile = strNewPath + "/" + fileNmNew // Combine All
try{
var nfileexists = 1
var otherDoc = app.openDoc(cnewfile);
}catch(e){
nfileexists = 0;
}
if (nfileexists > 0)
{
otherDoc.closeDoc();
this.insertPages({nPage:this.numPages-1,cPath:cnewfile});
}
*********************** This then goes on and does Map_B, Map_C etc and works fine

Code that I cannot get to work:********************

{
aFiles = new Array("_Map_A.pdf","_Map_B.pdf","_Map_C.pdf","_Map_D.pdf","_Map_E.pdf","_Demo.pdf","_Bus.pdf","_Spend.pdf");

var aPathComps = this.path.split("/"); //Path
var myFileName = aPathComps.pop(); //Filename
var fileNmRoot = myFileName.split(".").shift(); //Root Filename
var strNewPath = aPathComps.join("/"); // Append path to File to Insert

for ( var i=0; i < aFiles.length; i++) { //Loop through Array
var fileNmNew = fileNmRoot + aFiles[i] // File to Insert
console.println(fileNmNew);
var cnewfile = strNewPath + "/" + fileNmNew // Combine All
console.println(cnewfile);
}
for ( var i=0; i < aFiles.length; i++) {
var iffileexists = 1;
try{
var otherDoc = app.openDoc(cnewfile[i]);
}catch(e){
iffileexists = 0;
}
if (iffileexists > 0)
{
otherDoc.closeDoc();
this.insertPages({nPage:this.numPages-1,cPath:cnewfile[i]});
}
}

}

Hope someone can help !

Thanx

Mark

The problem with your array code is that you never define "cnewfile" as an array. In the first loop you use it as a string and in the second loop you're trying to access it as an array. You should either define it as an array and push the file locations in the first loop and then access them in the second, or just combine the two into a single loop which will create the file name and try to open the file in the same iteration. I think the latter is better since it's more efficient (1 loop instead of 2).

Thanx Try67 got it working with your tips
I could make it a little more elegant but for m needs it works and I am happy

Thanx everyone for your tips and help

Mark

Have attached code in case anyones interested

// Code to determione if a files exists then insert it into the open document
function GAddDP()
{
var aFiles = new Array("_Map_A.pdf","_Map_B.pdf","_Map_C.pdf","_Map_D.pdf","_Map_E.pdf","_Demo.pdf","_Bus.pdf","_Spend.pdf");
var cnewfile = new Array(8)

var aPathComps = this.path.split("/"); // Path
var myFileName = aPathComps.pop(); // Filename
var fileNmRoot = myFileName.split(".").shift(); // Root Filename
var strNewPath = aPathComps.join("/"); // Append path to File to Insert

for ( var i=0; i < aFiles.length; i++) { // Loop through Array
var fileNmNew = fileNmRoot + aFiles[i] // File to Insert
//console.println(fileNmNew);
cnewfile[i] = strNewPath + "/" + fileNmNew // Combine All
//console.println(cnewfile[i]);
}
for ( var i=0; i < cnewfile.length; i++) { // Loop through the list of filenames
var nfileexists = 1;
try{
var otherDoc = app.openDoc(cnewfile[i]); // Test if File exists
}catch(e){
nfileexists = 0; // Catch the errror if it doesnt
}
if (nfileexists > 0)
{
otherDoc.closeDoc(); // If it exists close it
this.insertPages({nPage:this.numPages-1,cPath:cnewfile[i]}); // Insert the document if it exists
}
}
}

Glad to hear it works. I do have one suggestion for you, though.
Imagine that in the future you will add or remove files from your list. You will then have to remember to manually change the definition of cnewfile or your script will not work properly/at all.
To prevent this you should drop the length definition for this array (just remove the number 8 from the brackets), and instead of this line:

cnewfile[i] = strNewPath + "/" + fileNmNew

use this:

cnewfile.push(strNewPath + "/" + fileNmNew)

This will make the length of your array dynamic. The rest of the script should work just fine.