Select composing options for the format

In Line spacing, select what you want, between "tight", "loose", "optimal" and "compatibility".

There are four choices:

•compatibility: same as the justification engine in 16-bit Ted4 and Fred4, i.e. optimal, except for hyphenation breaks that are loose

•optimal: the text is justified with a word spacing as near as possible to the optimal value.

•tight: the text is justified putting as much text as possible in each line.

•loose: the text is justified putting as little text as possible in each line.

Have in mind that the line spacing choices apply on lines contains a normal space between words, e.g. the one you insert by hitting the spacebar key. The above does not apply on non-breaking spaces, fill-space or fixed spaces.

In Use letter spacing, select it, to allow spacing being added between letters in justified lines that are too short to be justified otherwise, or clear it, to allow spacing being added only between words in justified lines that are too short to be justified otherwise (clear).

The setting regards only the justified text lines that are too short even when the maximum allowed space has been added between words. All other lines of text are not affected with this setting. The lines of text that are aligned left, right or centred, are never affected with this setting.

If the letter spacing is allowed, the additional white space is added proportionally between all the letters in the justified line that was too short, until the line extends to fit the column. This can cause the text line to look like:

a   s h o r t     l i n e   t h a t   c a n n o t    b e    j u s t i f i e d

If the letter spacing is not allowed, the additional white space is added proportionally between all the words in the justified line that was too short, untill the line extends to fit the column.

This can cause the text line to look like (the sample is exagerated by purpose):

a     short      line        that            cannot   be     justified

Do not confuse the letter spacing (that is created dynamically) with characters kerning or tracking - those are completely different functionalities.

In Automatically disable small capitals (or all lowercase/uppercase) on font or point size change, select it, to automatically clear typographical changes related to the >small...< tag, when selecting different font or changing point size. Clear it, to keep typographical changes related to the >small...< tag, when selecting different font or changing point size (recommended).

In Consider as non-empty lines containing only character markup commands (font change, color change), select it, to allow for example, tag >co< to create an empty line in text. Deselect it, to prevent such effect.

In Overfull lines handling, select the most appropriate handler for the overfull lines. There are three choices.

•Allow: this is the default behaviour, and the behaviour of the justification in all previous versions.

•Avoid only in shaped areas becoming wider: this will insert empty line BUT ONLY if the geometry widens after the line's position - i.e. if it is possible to avoid the overfull line moving it down in the geometry. In other words when a potential overfull line is detected, the justification algorithm inserts empty lines until it reaches a point in the geometry where the line will fit, or if this is not possible until it reaches a point in the geometry wider that the original one, but still with an overfull line.

•Avoid always. This means that when an overfull line is detected the justification algorithm will insert empty lines until it reaches a point in the geometry where the line fits, or until the line is out of the geometry entirely (overset). With this setting overfull lines will be always avoided, but if the geometry is too narrow all the text will become overset.