Most common reasons a PDF looks wrong or won't open
The PDF was opened in a browser instead of a dedicated PDF viewer - browsers sometimes display PDFs incorrectly
The PDF viewer or app on your device is outdated
The file did not download completely - the download was interrupted
The invoice contains a logo or image that is too large or in an unsupported format
Your browser is Internet Explorer - Billdu does not support Internet Explorer
How to fix a PDF that won't open
Download the PDF again - the previous download may have been incomplete
Open the PDF in a dedicated app instead of a browser - use Adobe Acrobat Reader, Preview (Mac), or the built-in PDF viewer on your device
Try a different browser - Chrome or Firefox are recommended for the best experience on both Mac and PC
Make sure your PDF viewer is up to date
How to fix a PDF that looks wrong
Open the PDF in Adobe Acrobat Reader or your device's built-in PDF viewer instead of a browser tab
If the layout looks stretched or misaligned, the issue is usually the PDF viewer - switching apps fixes it in most cases
If your logo appears distorted on the invoice, check the logo file: use JPG or PNG format, with a recommended resolution of 600x400px and a maximum file size of 2MB
If text or fields are missing, check your template settings under Settings - Template design and settings to make sure the required fields are enabled
Printing a PDF that looks wrong
Do not print directly from a browser - download the PDF first, then open it in a PDF viewer and print from there
If colors look faded or incorrect when printing, this is usually a printer or printer driver issue - check your printer settings
On mobile
Open the PDF with your device's built-in PDF viewer or a dedicated app such as Adobe Acrobat
If the file won't open, delete it and download it again from the invoice in Billdu
Tip: If the issue only affects one specific invoice, try duplicating it, saving the duplicate, and downloading the PDF from the new copy.
Didn't find what you were looking for? Contact our support team, and we'll sort it out for you.
