This is the most common complaint. You edited a file, but when you saved it, Master PDF Editor added its own stamp.
The free version is an excellent viewer and form filler. However, if you try to edit a document and save it, Master PDF Editor adds its own small watermark to the output file stating it was created with the editor. To remove that specific watermark, you must buy a license. master pdf editor remove watermark
Click directly on the watermark text or image. If it is a true annotation, it will highlight with a bounding box (blue lines and corner handles). You might see multiple layers if the watermark is on every page. This is the most common complaint