When i print invoice in magento give a error regarding png

Thanks for reply.

after above solution one another problem show. Give error folder is not writable. See below

The path “.:///var/www/html/magento2/var/var/www/html/magento2/var/” is not writable

Here my root Path is /var/www/html/magento2/ but this path showing twice when i generate pdf and give a writable permission error.

Please help me

Hello,

You may need to install ImageMagick (and/or the related PHP module for your distribution) for the app to handle images as needed.

http://php.net/manual/en/book.imagick.php

That may allow Magento to process/handle the images as desired.