Your logo belongs to an invoice template. Add it once, and every invoice and estimate that uses the template shows it on the web view and the PDF. Only Administrators and Finance Managers can edit templates.
Go to Settings › Invoice & Bill Settings and scroll down to Invoice & Quote/Estimate Templates.
Click the template your invoices use. The Edit Template popup opens on the General tab.
Under Branding, click Upload Company Logo and choose the image. Or drag the file onto the General tab.
Use a .png or .jpg image of up to 2 MB. The app suggests 800 × 400 pixels.
Click Save.
Check the result: open an invoice that uses the template and click Web View, or download the PDF.
The logo shows straight away on existing invoices and estimates that use the template, including ones already sent. A PDF already emailed or downloaded doesn't change. To add the logo from an invoice instead, click Edit next to Invoice Template in the invoice's details.
For the sharpest result, see the best way to upload a company logo.
Different logos for different brands
Each template has its own logo. If you invoice under more than one brand, add a template for each, with its own logo, name and address. Then pick the right template in the Invoice Template field of each invoice, or set it as the company's default template. See invoice and estimate templates.
The logo also appears on credit notes that use the template, and on the Customer Statement report, which uses the customer's default invoice template.
Remove or replace the logo
Open the template, click the cross on the logo and click Save. Without a logo, invoices show your company name in its place. To replace the logo, remove it and upload the new one.