Adjustment of a Bathroom Wash Basin

Advice please? I have a Bathroom Wash Basin which slopes slightly forward. It sits on a pedestal - not sealed onto it via sealant - and is secured to the wall via normal screws, not Wash Basin fixings. My question - based on the pictures attached - is would I have enough adjustment by simply moving the pedestal / securing the basin against the wall using sealant and using proper wash basin fixings? I don't particularly want to start messing about / adjusting the waste. Any advice greatly appreciated. Many thanks.

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You could pack in between basin and pedestal at the front to get basin level and cut back pack after done and sealant over gap.

Sealant between wall and back of basin and Screw fixing is enough to secure.

Daniel.

Is there play in the basin or is the floor running down at the pedestal??

Can you lift the front up and lift it level? If it's flat at the back and the wall then it should be pulled up straight and the screws nipped nice n tight, it should sit flat and the gap will move to front of the pedestal. Cardboard wedges and then silicon the gap, as star suggests

Many thank Daniel and Rob, that looks to be a solution. Richard