If you try to use a standard file converter (like Zamzar or CloudConvert), you will fail because:
This is where the "conversion" actually happens. Convert Pdf To Lbl File
To ensure your labels remain crisp and readable across any system, cross-reference your converted dimensions using standard aspect ratio formulas. If you must scale an asset, apply this linear scaling factor calculation to preserve your design layout: If you try to use a standard file
To use these software, simply open your PDF file in the software, select the export option, and choose LBL as the output format. select the export option
New Target Height (Htarget)=S×HsourceNew Target Height open paren cap H sub target end-sub close paren equals cap S cross cap H sub source end-sub