If you want to merge pdf files then there's an extension that can help you with it so to install that extension i'm going to go around on to the web store and to do that i you can enable the bookmark bar by going on to the three dot icon by going into bookmarks and then by clicking on so bookmark bar in my case it's already there and you will be able to see this apps icon right here and if you are not able to see that simply right click and then click on so app shortcut so you can see this out so once i click on apps here you can see that web store is an option so i'm going to click over here and then i'm going to go around and search for mers pdf extension and to do that i'm going to go around and in the sets the store area here i'm going to type in mirrors pdf so once i click on this you can see that pdf mirrors pdf toolkit nurse plus these are the extensions available that you can use so i'm going to click on pdf miz and click on add to chrome just like this and then i'm going to click on add extension so once you do that what happens is that the extension gets installed so pdf mess has been added to chrome as it says right here so now in order to pin it i'm going to click on the extension button and pin it right here so i can see the extension pdf mails so i'm going to click on pdf miss and miz is an option as you can see so once i click on it i can select pdf files and...