WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:0 00:00:06.950 --> 00:00:09.120 Hi there. In this video, 00:00:09.120 --> 00:00:12.480 we're going to look at what image resolution is, or DPI, 00:00:12.480 --> 00:00:14.730 or PPI, effective PPI, 00:00:14.730 --> 00:00:17.535 basically it comes down to the quality of your images. 00:00:17.535 --> 00:00:19.060 Let's go and do that. 00:00:19.060 --> 00:00:22.935 Image resolution might have come up in your world before and you might be like, 00:00:22.935 --> 00:00:25.275 "I can understand it, maybe I don't." 00:00:25.275 --> 00:00:26.805 Maybe you've never heard of it. 00:00:26.805 --> 00:00:29.340 Let's have a quick little look at what it is. 00:00:29.340 --> 00:00:32.310 Resolution is basically the quality of an image. 00:00:32.310 --> 00:00:36.290 I'm going to click on this background image here and I'm going to go to my "Links panel." 00:00:36.290 --> 00:00:38.780 If you can't see Links, go to "Window" and down to "Links." 00:00:38.780 --> 00:00:40.910 What we're going to do is, 00:00:40.910 --> 00:00:42.470 you might be able to see it already, 00:00:42.470 --> 00:00:44.160 but I don't have mine activated. 00:00:44.160 --> 00:00:47.370 See this little area here says "Show/Hide Link Information." 00:00:47.370 --> 00:00:49.490 I'm going to make mine go up a little bit higher just so 00:00:49.490 --> 00:00:51.410 I can see a bit more of this link information. 00:00:51.410 --> 00:00:53.330 You can do it little down, you can make it 00:00:53.330 --> 00:00:56.370 bigger and it just gives you information about the image. 00:00:56.370 --> 00:00:57.950 There's the name, it's a JPEG, 00:00:57.950 --> 00:00:59.780 it's on page one, it's RGB. 00:00:59.780 --> 00:01:02.630 What we're really looking for is the major one, 00:01:02.630 --> 00:01:04.750 it's the effective PPI. 00:01:04.750 --> 00:01:08.015 PPI is an acronym for pixels per inch. 00:01:08.015 --> 00:01:10.580 If you've ever heard of DPI or dots per inch, 00:01:10.580 --> 00:01:12.140 it's exactly the same thing, 00:01:12.140 --> 00:01:13.760 just a new way of explaining it, 00:01:13.760 --> 00:01:15.310 pixels instead of dots. 00:01:15.310 --> 00:01:17.250 We've got targets to hit. 00:01:17.250 --> 00:01:20.150 The effective PPI maximum should be 00:01:20.150 --> 00:01:24.080 about 300 and that's going to give you amazingly beautiful, 00:01:24.080 --> 00:01:30.815 crisp, clear image when we print it and the lowest that we can go is variable. 00:01:30.815 --> 00:01:33.395 It comes down to what its purposes. 00:01:33.395 --> 00:01:35.390 If this is going to be printed commercially through 00:01:35.390 --> 00:01:38.765 an offset printer and then put out in our display case, 00:01:38.765 --> 00:01:42.515 at our showroom, then we want it to be as close to 300 or above. 00:01:42.515 --> 00:01:44.600 You can have 1200 and that's fine. 00:01:44.600 --> 00:01:46.430 There's nothing wrong with that. Above is good. 00:01:46.430 --> 00:01:49.520 Below is when it starts getting into the gray area. 00:01:49.520 --> 00:01:50.945 So 300 is the target. 00:01:50.945 --> 00:01:55.420 It's totally just a made-up number that looks really good. 00:01:55.420 --> 00:02:00.605 Some people use it like some "carved-in-stone-can-never-be-changed" number, but really, 00:02:00.605 --> 00:02:04.520 if you're close to 300 like this one here, 00:02:04.520 --> 00:02:06.850 this is 291, I would not care. 00:02:06.850 --> 00:02:12.390 There's probably prepress people that do that might be going a red color now. 00:02:12.390 --> 00:02:14.085 But if we're all honest, 00:02:14.085 --> 00:02:18.695 we've all printed stuff below quality and nobody has noticed the difference. 00:02:18.695 --> 00:02:20.870 It's how low can you go. 00:02:20.870 --> 00:02:22.325 What really happens is, 00:02:22.325 --> 00:02:24.890 it's depending on how big you've stretched this image. 00:02:24.890 --> 00:02:28.130 This image is, you can see it's actual PPI is 300, 00:02:28.130 --> 00:02:30.770 so whether it's 300 DPI image or PPI image, 00:02:30.770 --> 00:02:33.725 but I had to stretch a little bit bigger to cover the bleed, 00:02:33.725 --> 00:02:35.825 so I just made it just a teensy bit bigger. 00:02:35.825 --> 00:02:37.880 It reached over this blade here. 00:02:37.880 --> 00:02:41.030 Let's look at an example that won't work. 00:02:41.030 --> 00:02:43.465 I'm going to delete this guy in the background temporarily. 00:02:43.465 --> 00:02:45.320 I'm going to go to "File" "Place." 00:02:45.320 --> 00:02:47.970 I've got an example in O3 newsletter, 00:02:47.970 --> 00:02:51.320 grab that one and let's go to "Image resolution" example. 00:02:51.320 --> 00:02:55.695 I'm going to bring it through and I'm going to bring it in, 00:02:55.695 --> 00:02:57.480 I just click it once and that has come in. 00:02:57.480 --> 00:03:01.665 It says it is 72, which is going to commercial printer. 00:03:01.665 --> 00:03:03.090 It's not going to work, 00:03:03.090 --> 00:03:05.195 so it needs to be at least 300, 00:03:05.195 --> 00:03:07.175 but it looks okay on screen. 00:03:07.175 --> 00:03:09.380 If you were going out to a screen, 00:03:09.380 --> 00:03:12.720 as in it's going to be emailed or downloadable from your website, 00:03:12.720 --> 00:03:15.190 72 is just a fine old size. 00:03:15.190 --> 00:03:16.670 I'd like it to be a little bit higher, 00:03:16.670 --> 00:03:19.730 but the minimum is 72 to look okay on most screens. 00:03:19.730 --> 00:03:22.580 On a retina screen like this MacBook Pro that I've got in front of me, 00:03:22.580 --> 00:03:24.110 it'll look a little bit pants, 00:03:24.110 --> 00:03:26.285 but I've got to stop using the word pants. 00:03:26.285 --> 00:03:28.605 It's UK slang for bad, 00:03:28.605 --> 00:03:30.585 that pants, not bad anyway. 00:03:30.585 --> 00:03:32.190 Anyway, back to resolution. 00:03:32.190 --> 00:03:36.455 It is 72 dots per inch or PPI, pixels per inch. 00:03:36.455 --> 00:03:37.970 It's going to work for screen, 00:03:37.970 --> 00:03:39.050 but it's not going to wait for print, 00:03:39.050 --> 00:03:41.345 but let's just make it bigger. 00:03:41.345 --> 00:03:44.255 I want to use it for the whole cover, so I'm going to make it quite big. 00:03:44.255 --> 00:03:48.345 I'm going to make it nice and big so it covers the bleed, 00:03:48.345 --> 00:03:51.810 I'm going to trim it up there and it's looking okay. 00:03:51.810 --> 00:03:54.660 It looks fine on my screen now, 00:03:54.660 --> 00:03:56.045 it might look okay on your video, 00:03:56.045 --> 00:03:57.935 but it will print really badly. 00:03:57.935 --> 00:04:01.865 You can see if I select on the effective PPI is 300 now, 00:04:01.865 --> 00:04:03.110 why is it changing? 00:04:03.110 --> 00:04:04.430 It's because I'm scaling it out. 00:04:04.430 --> 00:04:07.070 Watch they effective PPI as I keep scaling it up, 00:04:07.070 --> 00:04:09.125 scale it up, they go, it's 28. 00:04:09.125 --> 00:04:12.110 It's stretching those little pixels because if we zoom right in, 00:04:12.110 --> 00:04:13.930 it's actually made up of little squares. 00:04:13.930 --> 00:04:15.270 That's what resolution is, 00:04:15.270 --> 00:04:17.010 or pixels per inch. 00:04:17.010 --> 00:04:22.100 This is a pixel and how many pixels are in an inch at the moment is only 28 in that inch. 00:04:22.100 --> 00:04:25.270 You need a lot more dense pixels for this to work. 00:04:25.270 --> 00:04:27.060 Zoom out and you can start to see, 00:04:27.060 --> 00:04:30.750 now it's looking a little bit ready around the outside, pants even. 00:04:30.750 --> 00:04:32.150 The main thing to look at is, 00:04:32.150 --> 00:04:35.270 don't worry about the quality of the image that came in first, 00:04:35.270 --> 00:04:37.460 back in the days of your, 00:04:37.460 --> 00:04:40.680 you had to make sure everything was 300 PPI before it came in. 00:04:40.680 --> 00:04:44.060 What you can do now is you just looking at effective PPI, 00:04:44.060 --> 00:04:45.980 ignore this number here, what it is here. 00:04:45.980 --> 00:04:47.660 If this is going out to commercial print, 00:04:47.660 --> 00:04:51.485 this is so far from 300 that it's not going to work at all. 00:04:51.485 --> 00:04:53.125 Now, what are the boundaries? 00:04:53.125 --> 00:04:54.980 Say I do want to use this commercially, 00:04:54.980 --> 00:04:56.905 I'm going to scale it down. 00:04:56.905 --> 00:04:59.730 You can see 78 is still too little. 00:04:59.730 --> 00:05:02.750 If I want to use this in commercial print and I want to use it at 300 dpi, 00:05:02.750 --> 00:05:04.940 you can see I'm getting there, 138, 00:05:04.940 --> 00:05:07.565 might move this across so you can see it closer. 00:05:07.565 --> 00:05:14.685 Getting smaller, 227, 312. Close to it. 00:05:14.685 --> 00:05:18.295 That now is the right resolution to be printed. 00:05:18.295 --> 00:05:20.755 Unfortunately, it's teeny-tiny. 00:05:20.755 --> 00:05:23.360 Okay, so if you're downloading images from the Internet, 00:05:23.360 --> 00:05:26.630 you just got to make sure they're really big so you can lease when you scale them down, 00:05:26.630 --> 00:05:27.965 you get close to 300. 00:05:27.965 --> 00:05:29.345 How low can you go? 00:05:29.345 --> 00:05:32.565 Now, this is total personal preference. 00:05:32.565 --> 00:05:35.835 Now, the rule is 300. 00:05:35.835 --> 00:05:40.040 But I know if it's a good quality image from a stock library site, 00:05:40.040 --> 00:05:41.920 you can get down to about 180, 00:05:41.920 --> 00:05:45.450 150 if you're really sneaky and it will print fine. 00:05:45.450 --> 00:05:47.465 I probably wouldn't do this for the front cover 00:05:47.465 --> 00:05:49.480 because it's such an important part of this document. 00:05:49.480 --> 00:05:52.310 But say it's an image that's on Page 2 and it's 00:05:52.310 --> 00:05:55.850 just a small image and the resolution is about 180, 00:05:55.850 --> 00:05:57.950 nobody will notice. Again, it really depends. 00:05:57.950 --> 00:05:59.750 If you're trying to sell Bentley and you've got 00:05:59.750 --> 00:06:02.660 some low-quality images that are just slightly off, 00:06:02.660 --> 00:06:05.690 I'd be looking for 300 and above for resolution. 00:06:05.690 --> 00:06:07.835 But in the general day-to-day world, 00:06:07.835 --> 00:06:09.975 180 works just fine for me. 00:06:09.975 --> 00:06:12.945 To recap, if you're working on screens, 00:06:12.945 --> 00:06:15.120 that means it's going out via digital means. 00:06:15.120 --> 00:06:17.975 It's going to be emailed or via downloaded from our website, 00:06:17.975 --> 00:06:19.730 72 is the minimum. 00:06:19.730 --> 00:06:21.680 A lot different because screens deal with 00:06:21.680 --> 00:06:24.550 resolution a whole lot better than when it's printed physically. 00:06:24.550 --> 00:06:29.810 If that's the case, I can have this all the way up at 54, not quite there, 00:06:29.810 --> 00:06:33.030 but we're getting close, 00:06:33.030 --> 00:06:36.730 59, come on, Dan, you can do it. 00:06:37.850 --> 00:06:42.770 71, 72, that is fine if is it's physical size, 00:06:42.770 --> 00:06:45.655 that's going to be a digital download. 00:06:45.655 --> 00:06:50.555 In summary, just make sure your effective PPI is between 72 and 300, 00:06:50.555 --> 00:06:53.400 depending on its purpose.