Reduce file size PDF form 48 pages

I have a PDF form that exists of 48 pages. 44 pages are forms / have form fields, the other 4 pages are just informative. Each form-page has approx. 80 fields (check boxes, text fields). The PDF also contains some basic Javascript (hide fields, show fields, check entered data, etc.). When I started setting up the PDF form the file size was 12 MB and I had placed the fields on 21 pages (half of the PDF was finished). With 34 form-pages the PDF file size was 19 MB. Now with 40 form-pages the PDF is 35 MB big! The PDF is almost two times bigger! I have used the "PDF Optimizer" option inside Adobe Acrobat but the file was reduced only with 3 MB. So the PDF file is now 31 MB big. I found a suggestion on the Internet about removing embedded fonts. Using the "Audit Space Usage" option I noticed the fonts taking many MegaBytes: * Content Streams: 5.287.000 15,09 % * Fonts: 24.556.810 70,08 % !! * Acrobat forms: 3.349.164 12,05 % In the older PDF version (I saved and kept this one too) with just 21 pages with form-fields, the "Audit Space Usage" shows: * Content Streams: 5.292.000 40,14 % * Fonts: 1.290.224 9,79 % * Acrobat forms: 1.588.758 12,05 % But if I unembed ALL fonts, the file size stays almost the same. Maybe I am doing something wrong. Can you help me to reduce the file size? I would like the final PDF file to be 8 MB (if possible? 32 MB - 24 MB = 8 MB) It is important form me to get the PDF form as small as possible. Can you help get it smaller? Then you are hired!! Questions? Let me know, I will be online!