What is the reason when my labels print out very small?(If my label is not a 4*6 inch label?)

If your label is not a standard 4*6 inch file, you need to cut your label before printing it properly.

The following figure shows a standard 4*6 inch label file:

The following is an example of a 8*11 inch file:

If the document has a large blank area or other information besides the label, we need to cut off the blank area by cropping tools or software.

Solutions:

• Crop white space with Adobe Acrobat Reader
  

  This video is about how to operate it: youtu.be/ucBS9epBnnU

  The Adobe Acrobat Reader free download link (it's a free version, not Pro DC)

  Download: https://acrobat.adobe.com/us/en/acrobat/pdf-reader.html

  
  

• Use the Munbyn Editor to crop
  

  You can visit our MUNBYN Editor by clicking this link:
  https://editor.munbyn.com/
  
  

  After entering the Editor, you can follow the steps in this article to crop the label size:
  https://support.munbyn.com/hc/en-us/articles/36613633187347-How-do-I-import-a-PDF-for-cropping

After cropping, your file can be printed as a normal 4*6inch file.