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// Add navigation buttons to the page
// This script puts 3 buttons on top of every page (except the first one that has one button)
// First button "<" : takes to the previous page
// Second button: "1" : takes to the first page of the document
// Third button: ">" : takes to the next page in the document (does not exists on the last page)
var inch = 72;
try 
{
 nLastPage = this.numPages - 1;
 for (var p = 0; p < this.numPages; p++)
 {
 var x = 0.5;
 
 if (p > 0)
 {
 AddButton(p,x,0.5,0.25,0.25,"PrevPage","<","Previous Page","this.pageNum--;"); // left arrow, previous page
 x += 0.3;
 }
 
 if (p != 0)
 {
 AddButton(p,x,0.5,0.25,0.25,"StartPage","1","Go To First Page","this.pageNum=0;"); // "1", takes to the first page
 x += 0.3;
 }
 
 if (p < nLastPage)
 {
 AddButton(p,x,0.5,0.25,0.25,"NextPage",">","Next Page","this.pageNum++;"); // right arrow, next page
 x += 0.3;
 }
 AddButton(p,x,0.5,0.25,0.25,"Back","<<","Go Back","app.execMenuItem(\"GoBack\");"); // right arrow, next page
 x += 0.3;
 
 }
}
catch (e)
{
app.alert(e);
}
// AddButton function creates a button with given parameters and action
function AddButton(nPageNum, x, y, width, height, strText, strCaption, strToolTip, strAction)
{
 var aRect = this.getPageBox( { nPage: nPageNum} );
 aRect[0] += x * inch;
 aRect[1] -= y * inch;
 aRect[2] = aRect[0] + width * inch;
 aRect[3] = aRect[1] - height * inch;
 var f = this.addField(strText,"button", nPageNum, aRect);
 f.setAction("MouseUp",strAction);
 f.userName = strToolTip;
 f.delay = true;
 f.borderStyle = border.s;
 f.highlight = "push";
 f.textSize = 0; // autosized
 f.textColor = color.blue;
 f.strokeColor = color.blue;
 f.fillColor = color.white;
 // you can specify a different font here, otherwise it uses a default one
 //f.textFont = font.ZapfD;
 f.buttonSetCaption(strCaption); 
 f.delay = false;
}

출처 : https://www.evermap.com/javascript.asp

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