set px to {"9138.897755", "9138.897", "913.88977", "283.550", "913.889", "91.388977", "91.38897755"} 
set mm to 2.835 
set br1 to (item 1 of px as real) / mm 
set br2 to (item 2 of px as real) / mm 
set br3 to (item 3 of px as real) / mm 
set br4 to (item 4 of px as real) / mm 
set br5 to (item 5 of px as real) / mm 
set br6 to (item 6 of px as real) / mm 
set br7 to (item 7 of px as real) / mm 

set px to {"9138.897755", "9138.897", "913.88977", "283.550", "913.889", "91.388977", "91.38897755"} 
set mm to 2.835 
set br1 to ((((item 1 of px) / mm) * 1000) div 1) / 1000 
set br2 to ((((item 2 of px) / mm) * 1000) div 1) / 1000 
set br3 to ((((item 3 of px) / mm) * 1000) div 1) / 1000 
set br4 to ((((item 4 of px) / mm) * 1000) div 1) / 1000 
set br5 to ((((item 5 of px) / mm) * 1000) div 1) / 1000 
set br6 to ((((item 6 of px) / mm) * 1000) div 1) / 1000 
set br7 to ((((item 7 of px) / mm) * 1000) div 1) / 1000 

set px to {"9138.897755", "9138.897", "913.88977", "283.500", "913.889", "91.388977", "91.38897755"} 
set mm to 2.835 
set br1 to ((((item 1 of px as real) / mm) * 1000) div 1) / 1000 
set br2 to ((((item 2 of px as real) / mm) * 1000) div 1) / 1000 
set br3 to ((((item 3 of px as real) / mm) * 1000) div 1) / 1000 
set br4 to ((((item 4 of px as real) / mm) * 1000) div 1) / 1000 
set br5 to ((((item 5 of px as real) / mm) * 1000) div 1) / 1000 
set br6 to ((((item 6 of px as real) / mm) * 1000) div 1) / 1000 
set br7 to ((((item 7 of px as real) / mm) * 1000) div 1) / 1000 

set px to {"283.500", "283.5000"} 
set mm to 2.835 
set test to round (item 1 of px as real) 
set test2 to round item 1 of px 
set test3 to round (item 2 of px as real) 
set test4 to round item 2 of px 

set px to {"9138.897755", "9138.897", "913.88977", "283.550", "913.889", "91.388977", "91.38897755"} 
set mm to 2.835 
 
set br4 to (item 4 of px) / mm 

set px to {"9138.897755", "9138.897", "913.88977", "283.550", "913.889", "91.388977", "91.38897755"} 
set mm to 2.835 
 
set br4 to ((item 4 of px) * 1) / mm 

 set pdfGr to do shell script "cat " & quoted form of POSIX path of neueDok & " | egrep -ao '/MediaBox ?\\[ ?[0-9]+ [0-9]+ [0-9]+(\\.[0-9]+)? [0-9]+(\\.[0-9]+)?\\]' | head -1" 
 
set {origDelim, AppleScript's text item delimiters} to {AppleScript's text item delimiters, " "} 
set breite to text item 3 of pdfGr 
set breite1 to ((((round (text item 3 of pdfGr) rounding up) / mm) * 100) div 1) / 100 
set hoehe to text item 4 of pdfGr 
set AppleScript's text item delimiters to "]" 
set hoehe1 to ((((round (text item 1 of hoehe) rounding up) / mm) * 100) div 1) / 100 
set AppleScript's text item delimiters to origDelim 

set breiteMm to ((((round (breitePx) rounding up) / mm) * 100) div 1) / 100 
set hoeheMm to ((((round (hoehePx) rounding up) / mm) * 100) div 1) / 100 

set {hoehePx, breitePx} to paragraphs of (do shell script "mdls " & quoted form of POSIX path of pdfDok & "| grep -Ei 'kMDItemPage(Height|Width)' | awk '{print $3}'") 
set breiteMm to ((((round (breitePx) rounding up) / mm) * 100) div 1) / 100 
set hoeheMm to ((((round (hoehePx) rounding up) / mm) * 100) div 1) / 100 

set pdfDok to choose file 
 
set mm to 2.835 
 
set {hoehePx, breitePx} to paragraphs of (do shell script "mdls " & ¬ 
	quoted form of POSIX path of pdfDok & ¬ 
	"| grep -Ei 'kMDItemPage(Height|Width)' | awk '{print $3}'") 
set hoeheMm to ((((round (hoehePx) rounding up) / mm) * 100) div 1) / 100 
set breiteMm to ((((round (breitePx) rounding up) / mm) * 100) div 1) / 100 
 
{hoeheMm, breiteMm} 

set pdfDok to choose file 
 
set mm to 2.835 
 
set {hoehePx, breitePx} to paragraphs of (do shell script "mdls " & ¬ 
	quoted form of POSIX path of pdfDok & ¬ 
	"| grep -Ei 'kMDItemPage(Height|Width)' | awk '{print $3}'") 
 
set AppleScript's text item delimiters to "." 
set tmpList_1 to every text item of hoehePx as list 
set tmpList_2 to every text item of breitePx as list 
set AppleScript's text item delimiters to "," 
set hoehePx to tmpList_1 as string 
set breitePx to tmpList_2 as string 
 
set AppleScript's text item delimiters to {""} 
 
set hoeheMm to ((((hoehePx) / mm) * 100) div 1) / 100 
set breiteMm to ((((breitePx) / mm) * 100) div 1) / 100 
 
{hoeheMm, breiteMm} 

set userLocale to user locale of (get system info) 
set {hoeheMm, breiteMm} to words of (do shell script "mdls -name kMDItemPageHeight -name kMDItemPageWidth -raw '" & POSIX path of pdfDok & "'| LC_NUMERIC=" & userLocale & " xargs -0 -I _pt awk 'BEGIN {printf \"%.1f \",_pt/(72/25.4)}'") 
{hoeheMm as real, breiteMm as real} 

… '" & POSIX path of pdfDok & "' … 

… " & quoted form of POSIX path of pdfDok & " … 

/Users/User/Desktop/Meine tolle Datei.xyz 

 '/Users/User/Desktop/Meine tolle Datei.xyz'