You can import existing forms into Designer.
During the import, unnecessary objects may be created.
For example, when importing a PDF form, one text object may be
created for each line or word in the original form. The number and
complexity of objects increases the file size of the form and decreases
performance when rendering the form.
Designer provides options to reduce the number of unnecessary
objects created. When importing the form, you can choose the Create
an Interactive Form with Fixed Pages option or the Create an Interactive
Form with a Flowable Layout.
Each option produces different results in terms of the number
and complexity of objects on the resulting form. You may find it
useful to import the form once using the Maintain Editability option
and once using the Preserve Appearance option. You can produce the
final form by combining the most appropriate elements from each
resulting form.
After importing the form, you can reduce the number of objects
on the form by combining related text objects. For example, you
can select each individual text object that makes up a sentence
and combine them into a single text object.