purchasing Adobe Export PDFb

I'm trying to buy Adobe Export PDF, but it shows that it is not exist in my country. Is that a logic? I need this service and I'm not working to buy a collection.     See the link pleas.   https://acrobat.adobe.com/us/en/landing/exportpdf-pricing-b.html?trackingid=KRRQE&ttid=exprtpdf1&DTProd=Reader&DTServLvl=Free