Cats learn about their environment via scent. Before you bring your cat home, give her a scent introduction. Swap scents by taking a t-shirt with your smell on it to her for her to use as bedding. Likewise, take a blanket she already uses at the shelter and put it in the bed of your established cat. This allows him to get used to the idea of another cat on his patch but without her physical presence challenging him. This machine gives off a synthetic version of a feline pheromone, which helps the cats feel secure and decreases stress levels. This helps to chill the established cats so they are more relaxed with any changes. There is a canine equivalent called Adaptil, containing canine pheromones. If you have a dog and are introducing a new cat, the Adaptil will help him feel safe and calm. To introduce a new cat, create a safe room for her. She will be overwhelmed by the sights, smells, and sounds of her new environment, make your new cat feel at ease with one room of the house that is just hers. This way, she can feel safe and take time to adjust to her new environment. Here's what you should put in the safe room:  Ample food and water. A litter box. Position the litter box as far away from the food and water as possible so the cat has a distinction between the eating and bathroom areas of the home. Toys. Put in toy mice, dangly toys, little balls, feathered toys, and any other toys that can keep the cat active and entertained. A scratching post. Cats naturally love to scratch things to mark their territory, so it will help her feel more comfortable in her new environment and will keep her from scratching your furniture. An old blanket, bed, or toy from her previous home. This will make the cat feel at home and give her a designated sleeping area.  Plenty of hiding places. She will want to hide to help her feel safe, which builds her confidence and will help her feel bold enough to explore. Cats tend to like thinly granulated litter, so make sure to bring home litter that doesn't overwhelm your cat with its scent or texture. Place her litter box in a quiet but accessible part of the safe room. This way, she will feel safe using it.  If she is an older cat, she may have a preference for a certain litter. Ask her previous owner what litter she uses. Otherwise, she may reject your new litter. If the cat obviously dislikes the litter and spends time batting it out of the box, or if she circles the box nervously and shows an obvious distaste for it, you should try a different litter. Don't punish the cat for not using the box. If your new cat thinks the carpet is a new bathroom, don't put her face in the litter box or punish her by putting her in the box. This may make your cat even more reluctant to use the new box.
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One-sentence summary -- Make preparations before bringing the cat home. Consider a Feliway diffuser. Prepare a cat room. Get the right litter.


Press either Ctrl+L (Windows) or ⌘ Command+L (Mac) to do so. The Layers window will pop up in the upper-left side of the screen; you should see both the base photo and the cropped layer appear in the photo. Click the layer preview that corresponds to your cropped layer. At the top of the Layers window, click the downward-facing arrow to lower the opacity of the cropped layer. You may have to lower the opacity to 20 (or lower) to achieve your desired effect. Click the Image tab, then click Flatten Image in the resulting drop-down menu. This will combine all of the photos' layers into one image. This step is necessary before you can export the image to an image file. This will allow you to save the image as a JPG or PNG file:  Click File  Click Export...  Enter a file name. Select a save folder. Click Export
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One-sentence summary --
Open the Layers window. Select the cropped layer. Lower the layer's opacity. Flatten the layers. Export your finished image.