This is important because it gives you an opportunity to plan your slides all over again. Pt or inches The SI base unit for length is the metre. 1 metre is equal to 2834.6456692913 pt, or 39.370078740157 inches. Note that rounding errors may occur, so always check the results.PowerPoint provides a quick command that locates specific slides, and enables you to add it to the active presentation. While this process works the same way in all versions of PowerPoint.To learn more, choose your version of PowerPoint. If we do not have a tutorial for your version of PowerPoint, explore the version closest to the one you use. Image in inch, cm or mm with the argument units and specify ppi with res.the minor is, that, I am unable to change the units, from cm to inches, for example, on the rulers in PowerPoint. Someone suggested that I do it in Word, and that will change it in PowerPoint. I am unable to generate text boxes on master pages, that are subsequently editable on slide pages in the document.Since my PowerPoint settings showed cm size by default, to create a poster of size 36 into 44 inches, I used the Google calculator to get convert inches to cm.
![]() So what do presentation professionals need to know about picture size and resolution? Pictures are made of dotsOK, so this might not be the most exciting news headline but we need to start from the beginning. But when it comes to PowerPoint, there’s an odd mix of measurements from the physical and digital worlds even though the majority of what is produced is shown on either a monitor or a projector. If you come from a web design environment you might be more familiar with pixels. The first shows the image at a normal scale:But when we zoom in you can clearly see each individual pixel that makes up the picture:When you resize pictures in PowerPoint beyond their original 100% size, extra pixels have to be ‘invented’ by PowerPoint through a process of interpolation. The image below shows how pixels are used to form an image. Each of these dots is a single colour and the number of dots affects the file size of the picture. This affects file size.Resolution: the density of pixels per inch. But PowerPoint does take DPI into account as you’ll see later.So there are two aspects of a picture you need to be aware of:Size: the number of pixels horizontally by the number of pixels vertically. This is usually only applicable for printed media and defines how many pixels (dots) are crammed into each inch. In addition to the size of the picture in pixels, some image editors set a DPI (Dots Per Inch) parameter. Microsoft office for mac 2004 lionA point (pt) is equal to 1/12 Pica, and 1 Pica = 1/6 inch. The 96 number comes from the resolution of your monitor (more on that later) and 72 comes from the world of typography where a point is a physical unit of distance. A point is actually 0.75 of a pixel on a 96 DPI monitor which comes from 96 DPI / 72 PPI ( dots or pixels per inch versus points per inch). PixelsTo add to the complexity of picture size and resolution, PowerPoint measures picture sizes in points under the hood and then converts them into your preferred measurement system, inches or centimetres, before displaying them in the user interface:Points may mean prizes in game shows but in PowerPoint, points are not equivalent to prizes nor pixels. ![]() As soon as you hit return, the number is converted to your default units of measurement. That then translates to 1280 (960 / 0.75) by 720 (540 / 0.75) dots or pixels and that is what is used to project your picture during a slide show.A little known secret is that regardless of the measurement system set on your computer, you can actually enter dimensions for your slide setup and/or objects on your slide by typing in a number followed by px for pixels or pt for points. This is what’s used to scale your picture as it’s inserted into your slide. Change Powerpoint Units From Inches To Cm 720P Can CauseThis is because PowerPoint scales it by the ratio of 72/96 or 0.75.Making this picture larger than the slide or projecting it at anything bigger than HD720p can cause it to become blurry.If you now insert the same picture scaled to HD1080P (1920 x 1080 pixels) at 72DPI you’ll see that it’s automatically scaled down in PowerPoint to 50% of its original size or ¼ the size of HD1080P so that it fits on the slide:In this case, even though the picture has been scaled to the slide size all of the pixel data is still there for use when projecting. This is because we have the same number of pixels in the picture as there are points for the slide and the image is set to 72DPI:You’ll get the same result if you rescale the source picture in your preferred image editor to 1280 x 720 pixels, but at 96DPI. Most decent image editor apps will allow you to set both the size and resolution and in this example we used the free GIMP (GNU Image Manipulation Program) app which is available for both Windows and Mac.When it’s inserted into the slide it occupies the full slide size and PowerPoint has kept it scaled at 100%. Go ahead and try it!Now, let’s take a look at what happens when you insert pictures into your slides at various sizes and resolutions.Below are the settings for the stopwatch picture which we’ve scaled to 960 x 540 pixels at 72 DPI. This is the relevant information in Windows Explorer for our test pictures: If you insert the same picture at HD1080p size but with the DPI set to 144, it’ll get inserted at 100% scale and fit the slide exactly.When looking at file size, it’s clear to see that it’s the number of pixels in the file that makes the difference and that the DPI setting does not impact file size at all. This depends on the image interpolation algorithms in use by the combination of PowerPoint, your graphics card and the projector. The corresponding monitor DPI values for these are:This means that there are twice as many dots/pixels in use on the second monitor. You might have one HD1080p monitor set to 100% scale and another set to 200%. The second picture will have a larger file size as it contains more pixel data.Now you know how DPI has an impact on pictures in PowerPoint, you might be asking yourself how does the Windows scaling affect all of this? When you change the scale factor in Windows Settings what is essentially happening is that the display DPI is being changed. That these two images are treated as the same size when inserted but the second one can be projected at a larger size as it contains more pixel data irrespective of its DPI setting. To test this we took the original stopwatch picture sized to 2048 x 1203 at 330DPI. It also changes the size of the image in pixels. It doesn’t scale beyond the current DPI setting of the image because this implies creating new pixel data, which is why you’ll see some options greyed out.You might think that PowerPoint is just changing the DPI setting in the image but it’s not. The first is in the ribbon and the second is in the backstage.Compress Pictures is found in the ribbon when you have a picture selected and you click the Format Picture tab:This open a window that allows you to compress the currently selected picture or all pictures in your presentation:You can click the ? icon in this window for lots more detail from Microsoft on what each of these settings does but basically, the Resolution section scales the image down to the set ppi (ppi here means dpi not points per pixel!). Other PowerPoint ConsiderationsIf you dig around in PowerPoint you’ll find a couple of other features that affect picture quality. That means taking your HD1080p picture and sourcing a 4k version of it, which is 3840 x 2160 pixels. ![]() In general, if you’re projecting at a maximum size of HD1080p, make sure you’re using pictures that are created at 1920 x 1080 pixels in size. Choosing the right size has an impact on both the file size of your presentation and the maximum monitor/projection size you can use without degrading quality. Currently, the maximum size for a PowerPoint slide is as follows:Pictures in PowerPoint can be tricky to get to grips with. You might want to know this if you’re printing your creation onto a large format printer or displaying it on a monster projector.
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