The solution to the error "Error! Undefined bookmark!" appears when saving word as PDF is: 1. Press the [ctrl a] shortcut key to select all word documents; 2. Press the [ctrl f11] shortcut key to select The field to be locked prevents the field from being updated; 3. Save it as pdf again.

# Problem analysis:

"Domain" problem.

Solution:

First select all (Crtl A) documents, then press the Crtl F11 key combination, and finally save it as PDF again.

Related information:

1. What is the "domain" of Word?

Word fields can accomplish many complex tasks. Automatic page numbering, chart captions, footnotes, endnote numbers, etc. can all be quickly completed through Word fields.

2. How to disable automatic domain updates?

Select the field to be locked and press the "Ctrl F11" key combination to lock the field to prevent the field from being updated (only valid for fields with update characteristics, such as time fields, page number fields, etc.). When you need to update a locked domain, press the "Ctrl Shift F11" key combination to unlock the domain.

3. How to cancel the domain in word?

Select the part to be cleared, click Format and Style in the menu, and then click "Clear Format" in the Format and Style task pane that pops up on the right.

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