You can add a logo to your settings which appears on your documents. The best resolution for a logo is 600x400px. Images with another resolution or proportions will be stretched to fit the docuemnt. Billdu will try to accommodate your image to your invoices automatically.


  • Go to Settings

  • Click on My businesses 

  • Click on the name of the company you'd like to edit

  • Find buttons to upload images with your logo and signature at the bottom

The size of your logo on the invoice depends on the picture's size and dimensions. Use a picture in a JPG or PNG format.

The max. size of an image is 2MB.


  • Select Settings and My businesses

  • Select the name of the company you'd like to edit

  • Your company details appear

  • Scroll to the bottom and click on Logo

  • Select Insert image from camera roll

  • Choose an image. On iOS devices, you can now crop and rotate the image

  • Click on ✓

  • A preview of the invoice with your logo appears. You can delete the logo or go Back

  • On the bottom of the list click on Signature 

  • Tap on Insert image or Sign by finger. You can now choose an image or create a signature right in the app

  • A preview of the invoice with your signature appears. You can delete the signature or go Back

  • Click on ✓

  • You can now Save the business settings 

Note: Changes in business settings will take effect on the next invoices you create. It won't affect invoices created previously.

Hint: Take a look here to learn more about how you can choose your own template, invoice color and details, which will be displayed on the invoice. You can also pre-set texts and dates and alter document names.

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