Font behavior

When you create PDF forms, it is possible to include only those characters of a font that are actually used in the form. This technique is called font subsetting. You can also embed fonts into the form so that end users have all of the fonts they need to use the form. In this case, the size of the PDF file is larger.

Note: The manufacturer of the font can specify the level of embedding that is allowed.

Fonts can be subset in static PDF forms

In static PDF forms, fonts can be subset for text and field captions. Subsetting reduces the size of the PDF file. To subset fonts into the form, the font you select must be set to the Print & Preview Embedding Allowed level.

Note: The fonts used in the fillable area of fields cannot be subset on static PDF forms because the user input can contain any character from the font.

Fonts are embedded in dynamic PDF forms

In dynamic PDF forms, fonts are fully embedded or linked. Embedded fonts are never subset. When a form that has embedded fonts is opened, even if the fonts are already on the system, Adobe Reader uses the embedded fonts. To embed fonts into the form, the embedding settings in the fonts you select must allow embedding for edit.

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