We have added this wish into our database. Actually, we added them as 2 different wishes.
The first being for splitting the layout to multiple pages. Its reference number is Wish #12587.
The second being for cutting the figures and drawings by exporting PDFs instead of masking the source view. Its reference number is Wish #12588
For the first wish, I can recommend a workaround which can work if you are willing to give it a try:
If you were to reference a Layout on a (e.g.) Worksheet, there is an option to save it as a PDF file with 'Displayed Reference'. This way the Layout can be split into multiple pages.
For the second wish, I can recommend a semi-workaround by going to the PDF Options and in there, it is possible to change the resolution, which would help to reduce the file size. However, this would not work as well as if we were to implement the Wish into the software, and that is why we added the wish to our database.
I sincerely hope we will see these wishes implemented in the future.
Thank you for your active participation and contribution on the forums.
I wish a great day, and a happy new year!