How do I change the format of my guides to 4x6" for use in my thermal printer?
Below we will show you the steps to be able to change the format in which the shipping guides are generated in Envia.com in order to use them in your thermal printer.
1. Click here and log in to Envia.com
2. Go to settings
To go to settings, click on the button shown below, which is located at the top right and then on "Package Configuration". 
Once inside Parcel Configuration you have to change the format in which the guides are generated.
3. Move the cursor over the package you usually use and change the format to "PDF - STOCK_4X6".
As of this change, all the guides that are made from now on with that package will be made in PDF format - STOCK_4X6.
If you generate a guide with the package that you just changed the format to PDF - STOCK_4X6, it should come out like the following examples when printing.
NOTE* Only the following parcels have a 4x6 format:
Fedex, Redpack. Sendex, Carssa, UPS, Estafeta, Quiken, Vencedor, SCMWS
If you use DHL to generate your shipments, scroll a little further down and you will find the instructions for DHL
Mac example: 
Widow example: 
Thermal Waybills for DHL
DHL guides are made in 4 x 7.5" format when printed on a thermal printer, which means that the document is larger than the sheet it will be printed on. To correct this, reduce the size of the document. document when printing. Follow the steps below to print it correctly
Remember that once the DHL waybill generation format has been changed to "PDF - STOCK_4X7.5" the waybills will come out correctly with the measurement for thermal printer. All the guides that have been generated before making this change, were generated in the format for an A4 sheet.
For Mac:
1. Once a DHL guide has been made in 4 x 7.5" format, it must be sent to print from the " Preview " or " Preview " application and make sure that the following options are selected:
Printer: DYMO LabelWriter 4XL
Paper Size: 1744907 4 in. x 6 in.
Fit Dimensions: Print Entire Image
Mac example:
Example for Windows:
Once the guide has been made in 4 x 7.5" format, it must be sent to print from Google Chrome or your browser, and you must make sure that the following options are selected:
Printer: DYMO LabelWriter 4XL
Paper Size: 1744907 4 in. x 6 in.
Scale: Fit to print area
Windows: 
Click on print and it will print correctly.
If you have any questions, you can contact us by clicking here.