Commands

ANNOUPDATE command in AutoCAD : Updates existing annotative objects to match the current properties of their styles

If you need a clear, step‑by‑step guide to using the ANNOUPDATE command in AutoCAD — what it does, how to run it, why it sometimes appears to fail and what alternatives/fixes exist — this article covers everything a beginner needs to update annotative objects and styles reliably.

Introduction: what ANNOUPDATE does and when to use it

ANNOUPDATE is an AutoCAD command that updates existing Annotative objects so they match the current properties of their styles. Use it when you change a text, dimension, or multileader style (for example you change height, scale settings, or toggle the annotative flag) and you want existing annotative objects to adopt those style changes.

Common situations to run ANNOUPDATE:

  • You edited a Text style, dimension style, or multileader style and want existing annotative objects to reflect the new settings.
  • You changed the annotation scale list and need annotative objects to update for the new scales.
  • You imported or inserted content from another drawing and styles changed.

Key concepts (beginners)

  • Annotative object: an object (text, dimension, block, multileader, hatch etc.) that automatically scales to the current annotation scale so it displays at a consistent size in different viewports/scales.
  • Annotative style: the text/dimension/mleader style that can be marked as annotative. Styles control font, height, arrow size, etc.
  • Annotation scale: the scale at which annotative objects appear. Viewport scales determine how annotative objects are displayed in paper space viewports.
  • ANNOUPDATE: the command that forces existing annotative objects to update to the current style definitions.
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How to use ANNOUPDATE — step by step (with tips)

  1. Save your drawing and optionally create a backup copy. Style changes can be difficult to undo if you need to revert.

  2. Make sure the style you edited is correctly configured:

    • Open Text Style (STYLE), Dimension Style (DIMSTYLE) or Multileader Style (MLEADERSTYLE) and confirm the new parameters.
    • If you intend objects to scale with annotation, ensure the style or object is set as annotative.

  3. Confirm the relevant annotation scales are present in the drawing (use the annotation scale control in the status bar or the drawing setup).

  4. Type ANNOUPDATE at the command prompt and press Enter.

  5. When prompted, choose how to target the update. Typically you can:

    • Update all annotative objects in the drawing,
    • Update by style (so only objects of a specific style are updated),
    • Update selected objects (choose individual objects to update).
      (Prompts may vary by AutoCAD version; follow on-screen instructions.)

  6. After the command completes, run REGEN or REGENALL to refresh the display.

  7. Inspect objects in Model space and viewports at different annotation scales to confirm sizes and appearance match the updated styles.

Tips:

  • If changes don’t appear, confirm objects are actually annotative (select an object and check the Properties palette).
  • If you want style changes to apply automatically in the future, keep a template (DWT) with your standard annotative styles.

Examples (before / after descriptions)

  • Example A — Text style height change:

    • Before: Annotative text created with StyleA shows old height in all viewports.
    • Action: Change StyleA height to the new value and run ANNOUPDATE → all annotative text using StyleA now displays at the new height.

  • Example B — Dimension arrow size and units change:

    • Before: Annotative dimensions show old arrow size and unit format.
    • Action: Modify the dimension style, set it to annotative (if needed), then run ANNOUPDATE → dimensions update to reflect arrow and unit changes.

  • Example C — Block with annotative content:

    • Before: A block contains annotative text but does not reflect an updated text style.
    • Action: If the block definition is non-annotative or outdated, redefine the block as annotative or update the block definition, then run ANNOUPDATE (or use block-specific sync tools) to refresh references.
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Why ANNOUPDATE sometimes doesn’t work — common causes and fixes

  • Problem: Objects are not actually annotative.

    • Fix: Select the object, check the Properties palette and enable the Annotative property, or recreate using an annotative style.

  • Problem: The style you edited is not the one used by the object (style mismatch).

    • Fix: Select the object and confirm its style name; update the correct style or use MATCHPROP to reassign properties.

  • Problem: Objects are inside a non-annotative block or block references need updating.

    • Fix: Redefine the block so the annotative geometry is part of an annotative block or explode/replace the block. You can also use ATTSYNC for attribute definition changes (for attribute updates), or redefine the block and use BEDIT/REFEDIT then save.

  • Problem: The active annotation scale is not set or the viewport scale differs.

    • Fix: Add the correct annotation scale to the drawing’s scale list and ensure viewport scale matches the desired display scale.

  • Problem: Viewport overrides, layer visibility, or viewport freeze prevents display update.

    • Fix: Check viewport layer visibility, thaw layers, and verify no viewport-specific overrides hide or freeze layers.

  • Problem: Drawing corruption, missing references or older DWG version issues.

    • Fix: Run AUDIT and RECOVER to fix drawing errors. Use INSERT to bring content into a clean template if needed.

  • Problem: You changed block definitions in an external file or used external references (Xrefs).

    • Fix: Reload Xrefs and update nested definitions. Run ANNOUPDATE in the host drawing and in the Xref drawing as necessary.

Alternatives and related commands

  • REGEN / REGENALL — refresh the display; often needed after updates.
  • STYLE / DIMSTYLE / MLEADERSTYLE — edit annotative styles directly.
  • MATCHPROP — copy properties from a “correct” object to others.
  • ATTSYNC — synchronize block attribute definitions with block references (useful when attributes changed).
  • BEDIT / REFEDIT — edit block definitions to make contained objects annotative.
  • AUDIT / RECOVER — fix drawing errors that may prevent updates.
  • PURGE — remove unused styles or scales (careful — don’t purge styles still in use).
  • Use a template (DWT) with consistent annotative styles to avoid repeated fixes.
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Practical tips and best practices

  • Always work from a standard template with preconfigured annotative styles and typical annotation scales.
  • Before changing styles globally, make a backup or use layer groups to isolate changes.
  • Keep a named view or test viewport to check annotation at all common scales (e.g., 1:50, 1:100).
  • Prefer editing styles rather than individual objects for consistent results; then run ANNOUPDATE.
  • Use layers and consistent naming conventions so you can quickly find and update objects by layer or style.
  • When working with blocks, prefer annotative blocks if block contents should scale with annotation.
  • If multiple drawings need the same updates, update the template or use a script to automate ANNOUPDATE across files.

FAQ — What is the difference between an annotative object and an annotative style?

An annotative style is a style (text, dimension, multileader) that has annotation properties enabled. An annotative object is an instance that uses that style and will automatically scale with the annotation scale. You can set a style to be annotative and also toggle the annotative property on individual objects.

FAQ — Will ANNOUPDATE change non‑annotative objects?

No. ANNOUPDATE affects objects that are already annotative (or styles that control annotative objects). Non‑annotative objects will not be converted unless you first enable their annotative property or recreate them using an annotative style.

FAQ — How do I make a block annotative so ANNOUPDATE works on it?

Edit the block definition (use BEDIT or redefine the block) and set the block to be annotative when creating or redefining it. After that, run ANNOUPDATE to ensure existing block references update. If block references were created before you changed the block, you may need to update references or reinsert them.

FAQ — Why didn’t Text size change after I ran ANNOUPDATE?

Common reasons:

  • The object isn’t annotative.
  • The object uses a different style than the one you edited.
  • The annotation scale or viewport scale doesn’t match the intended scale.
  • The block containing the text is not annotative or the block references need redefinition.
    Check object properties, styles, and annotation scales, then rerun ANNOUPDATE and REGEN.

FAQ — Can I update annotative objects in multiple drawings at once?

There’s no single built‑in command to run ANNOUPDATE across many files at once, but you can automate the process with a script or LISP routine that opens each DWG, runs ANNOUPDATE, saves, and closes. Alternatively, update your template (DWT) so new drawings inherit the correct styles.

FAQ — What if ANNOUPDATE fails due to drawing errors?

Run AUDIT and RECOVER to identify and fix drawing corruption. If issues persist, try inserting the drawing into a clean template (INSERT) and then rerun ANNOUPDATE in the new file.

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