Hello my name isXXXXX look forward to assisting and am very sorry to hear that you are having this problem.
You can use this program to scan into PDF: Click Here
You can also use preview to do it.
To do that open preview in your applications folder.
Then click on file and go to from scanner or camera.
Save each page individually.
Then open each of then in Preview.
From the File menu, select Print Selected Pages...
Within the Print dialog, select the PDF button at the lower left
Select Save As PDF...
A 3rd option is combine PDF.
Download and install CombinePDF, a really fantastic little tool that I've found handy on many occasions
Connect your scanner to your Mac and open up ImageCapture
In the toolbar to the right, click on the dropdown next to "Automatic Tasks"
Click on "Other..."
Browse to wherever CombinePDF is installed, select it and click "Open"
Now insert your document into the scanner and click Scan
As each page is scanned, its fwill be added nto CombinePDF. S
When all of your pages are scanned in, click on "Merge PDF..."in CombinePDF
Select a location for the final PDF and give it a name, then click on OK
If this did not work, please come back and let me know by clicking on reply to expert so we can continue.
If it did work, please don’t forget to leave a positive rating - it is greatly appreciated.