QS... there still is another solution if you dont want to link it to the .pdf or if you are having difficulties then there is another way but a little complicated.
what you could do is just insert a picture instead of the pdf file where the ID card against the name then the image of the ID card can be also be seen..
if you want to do it this is how
since you have scanned it in .pdf we need to make a jpeg out of it ..so if you can scan the id to a .jpeg instead of a .pdf then follow the 2nd part. else u need to do the part 1 ..
Part 1 ..-> open the .pdf file -> press "alt" and "print scrn" keys together(printscrn is on the top almost right side at the end of the "f" keys)
->press the windows key and "r" together-> type "mspaint" and enter
->press 'ctrl' and 'v' key together-> you should have you screen shot-> trim it accordingly and save it as a '.jpeg' file ->

Part 2..
-> in the xl sheet select insert picture-> select the location of the '.jpeg' file and voila...