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> User manual #@IC_HTML@# > Functions > Characteristics
====== Automatic stamping (grouped) ======
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With this function you can stamp a drawing entry that is not grouped. The prerequisite is that the drawing file is available in the drawing format DWG, DXF or IGES or in PDF format with font embedding, see →[[en:infra-convert:user:terms#Drawing data format|Drawing data format]].
**When is a drawing entry disassembled?**
If you point to a drawing entry with the pointer of the stamp tool, all elements belonging together are highlighted.
If not all relevant text elements of a drawing entry are highlighted, the entry is fragmented, but can be recognized as a characteristic by grouping stamping.
{{ :en:infra-convert:user:functions:zeichnungseintrag_zerlegt_beispiel.png?nolink |}}
> **Note** PDF files can only be automatically stamped with a Professional licence (#@IC_HTML@# Pro), see [[en:infra-convert:info|At a glance]].
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//**__Content__**//
• [[#Workflow]]\\
• [[#Customization]]
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==== Workflow ====
{{page>en:infra-convert:user:functions:ballooning_group_workflow}}
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==== Customization ====
The function can be influenced via the following settings:
**Creating characteristics**
Change settings for creating characteristics.\\ **See** Settings > Settings > [[en:infra-convert:user:config:features|Characteristics]]
**General tolerance tables**
Change the underlying general tolerance tables, from which tolerance values for non-individually tolerated measurements are applied.\\ **See** Settings > Project settings > [[en:infra-convert:user:config:tolerancetables|Tolerance tables]]
**Stamp settings**
Change underlying settings for stamp.\\ **See** Settings > Settings > [[en:infra-convert:user:config:stamps|Stamp]]
**Stamp templates**
Change the graphical display of the stamp.\\ **See** Settings > Project settings > [[en:infra-convert:user:config:stamppattern|Stamp templates]]
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Functions > Characteristics > [[en:infra-convert:user:functions:ballooning|Automatic stamping]]
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Functions > Characteristics > [[en:infra-convert:user:functions:ballooning_preset|Stamp with preset]]