# Change font size in load project family

**URL:** <https://forum.dynamobim.com/t/change-font-size-in-load-project-family/49356>\
**Category:** Revit\
**Created:** [April 15, 2020, 1:35pm UTC](https://forum.dynamobim.com/t/change-font-size-in-load-project-family/49356 "2020-04-15T13:35:32Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![DanielG](https://avatars.discourse-cdn.com/v4/letter/d/f0a364/32.png) [@DanielG](https://forum.dynamobim.com/u/DanielG)\
**Post date:** [April 15, 2020, 1:35pm UTC](https://forum.dynamobim.com/t/change-font-size-in-load-project-family/49356/1 "2020-04-15T13:35:32Z")

</div>

Hello everybody,  
I try to change the font size in an invited family. Additionally scale linen and the like. I have already found some entries in the forum, for example:

```
import clr

# Import DocumentManager and TransactionManager...
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
uidoc = DocumentManager.Instance.CurrentUIDocument
 
# Import RevitAPI...
clr.AddReference("RevitAPI")
from Autodesk.Revit.DB import *
 
 
############## Classes ###############
 
# Define FamilyLoadOptions...
class FamilyOption(IFamilyLoadOptions):
    def OnFamilyFound(self,familyInUse,overwriteParameterValues):
        overwriteParameterValues = True
        return True
 
    def OnSharedFamilyFound(self, sharedFamily, familyInUse, familySrc, overwriteParameterValues):
        familySrc = FamilySource.Family
        overwriteParameterValues = True
        return True
 
############# Definitions ##############
 
# Open and search family doc for suitable Element Types to set font...
def UpdateTextFontInFamily(doc, f):
    # Must force close all open transactions to open family...
    TransactionManager.Instance.ForceCloseTransaction()
    try:
        arr = []
        outList.append(f.Name)
        # The Parameter we are looking for...
        bip = BuiltInParameter.TEXT_FONT
          
        # Open Family Document...
        fDoc = doc.EditFamily(f)
        ElementTypes = FilteredElementCollector(fDoc).OfClass(ElementType).ToElements()
 
        # Wrap in a Transaction...
        TransactionManager.Instance.EnsureInTransaction(fDoc)
        # Search all ElementTypes for Parameter and set Text Font if found...
        for i in ElementTypes:
            tArr = []
            try:
                p = i.get_Parameter(bip)
                p.Set(font)
                tArr.append(i.FamilyName)
                tArr.append(i.get_Parameter(bip).AsString())
                arr.append(tArr)
            # If parameter was not found in this ElementType then move on to next ElementType...
            except:
                continue
 
        outList.append(arr)        
        # Must Force Close Transaction to close FamilyDoc...
        TransactionManager.Instance.ForceCloseTransaction()
        # Load Family back into project and Close Family Document...
        fDoc.LoadFamily(doc, FamilyOption())
        fDoc.Close(False)
    except Exception,e:
        outList.append(f.Name + " Failed:-\n" + e.message)
 
# Convert single object to list if not list already
def tolist(obj1):
    if hasattr(obj1," __iter__"): return obj1
    else: return [obj1]
 
############## Inputs ###############
 
run = tolist(IN[0])[0]
fams = tolist(UnwrapElement(IN[1]))
font = tolist(IN[2])[0]
 
############## Outputs ###############
 
outList = []
 
############## Main ###############
if run:
    for f in fams:
        try:
            # Skip InPlace Families...
            if not f.IsInPlace:
                UpdateTextFontInFamily(doc,f)
        except Exception,e:
            outList.append("Failed:-\n" + e.message)
    # Refresh the Active View to see changes immediately...
    uidoc.RefreshActiveView()
    OUT = outList
else:
    OUT = "Please set Run to True"

```

[Youtube - Change Font In Families With Dynamo - Dinamo](https://www.youtube.com/watch?v=VWpLt71xKHI)  
[https://danimosite.wordpress.com/2017/09/16/changing-fonts-in-families-programmatically/](https://danimosite.wordpress.com/2017/09/16/changing-fonts-in-families-programmatically/)  
Can this script be adapted to my question? Unfortunately I failed in my attempts.  
To opening families via document path, is not an option in this case.

Thank you!