You can try using a soft brush or a gentle cloth to carefully wipe them off. Be really careful not to damage the comic.
Yes, they often are. Spine ticks can indicate damage or imperfect production, which can be seen as defects.
Hard to say. Different comic platforms have different standards for scoring and spine ticks. It could be possible, but you might need to check the platform's detailed policies.
One way to remove spine curl in comic books is to use a hair dryer on low heat. Gently blow the heat onto the curled area while holding the book flat. Be careful not to overheat it. Another option is to place the comic book between two flat boards and apply some weight on top for a few days.
It's not legal and not recommended to remove watermarks from comics. Watermarks are usually there for copyright protection.
You might try looking for an option like 'delete' or 'remove' within the Comicat interface. That's often the easiest way.
You can usually remove comics from Comixology by going to your library or collection, finding the comic you want to remove, and looking for an option like 'delete' or 'remove'.
One way to do it is by heating the tape slightly with a hairdryer on a low setting. This can make the adhesive less sticky and easier to remove without damaging the comic.
Well, there are a few methods. You could try using specialized comic editing apps that have features for bubble removal. Another option is to manually mask and delete the bubble in image editing programs. Just make sure to save backups in case you make a mistake.
You can try using a soft, dry cloth to gently wipe the stains. Sometimes that works for light ones.
You can try using a hairdryer to heat the sticker. The heat softens the glue and makes it easier to peel off.