It seems that Adobe Freehand drawings were notoriously difficult to properly export to PDF and some elements may have not been saved properly. Some users circumvent this situation successfully by exporting to EPS format (PostScript) instead and then import this to some graphics editor like Fireworks or Photoshop and export that to PDF.
Convert Adobe FreeHand 10 drawing to Adobe Portable document format.
We found 4 software records in the database related to .fh10 to .pdf file format conversion.
Microsoft Windows software - convert fh10 to pdf on Windows
A powerful vector graphics editor from Adobe
Convert from fh10 file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned fh10 to pdf. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Image editor used for web design from Adobe
Apple macOS / Mac OS X software - convert fh10 to pdf on OS X
Mac version of Adobe's vector graphics editor
Mac version of Adobe's popular image editor