It is best not to use copyrighted images with watermarks.  

For more details, please see a great related article https://pixelsink.com/can-i-use-stock-photos-with-a-watermark/


Free image resources

Never need to use a watermarked image again.

The following websites all offer images that are free for you to use. However, as websites change frequently, I would suggest that you take a moment to check their image usage guidelines. Even though images are free to use, certain sites require you to leave an accreditation detailing the source of the image, so please check and keep to the rules.


Pixabay.com
Picjumbo.com
Libreshot.com
Stocksnap.io
Pexels.com
Isorepublic.com
designerpics.com
realisticshot.com
splitshire.com
foodiesfeed.com
unsplash.com
gratisography.com
kaboompics.com
fancycrave.com
stockphotos.io
lifeofpix.com
startupstockphotos.com
nos.twnsnd.co

jaymantri.com
travelcoffeebook.com
picography.co
albumarium.com
stokpic.com
goodfreephotos.com
photos.bypeople.com
4freephotos.com
adigitaldreamer.com/gallery
bajstock.com
bigfoto.com
freeimages.co.uk
deathtothestockphoto.com
freenaturestock.com
animalphotos.info
free-photo-frames.com
dummyimage.com