10. PDF Signing Locations
Important: when leaving the invisible signing fields out, as explained in section 5.7.6.3, this entire chapter doesn't apply.
Signing fields can be added to a PDF in 2 different manners:
Note: all fields should at least be 112 points wide and 70 points high, so they can be reliably filled. Smaller fields might have their contents scaled to tiny size or have their content cut off. Also note that it is recommended to use slightly higher values than the minimum ones. E.g. 75 points x 120 points. Using the absolute minimum values may lead to round-off errors during conversions.