Compared to most other document formats, PDFs support a very wide range of compression. Normally when you save your PDF documents you will be provided with options as to how you want to compress the document. It is up to you to then decide the type of compression you want to use. Some of the types of compression that you can choose to use in your PDF documents include:. JPEG Overall JPEG is a popular type of compression that is used to compress photos and other images. Normally the quality of the images can be selected (or conversely the level of compression) to determine how compressed the image becomes and how much data is discarded.

1. Compress Pictures To Reduce The File Size In Office For Mac Download
2. Compress Pictures To Reduce The File Size In Office For Mac 2016
3. How To Reduce The File Size In Photoshop

JPEG 2000 Although JPEG 2000 is a newer and more efficient type of compression for color photos and images. It should reduce the file size more while preserving the image quality better than JPEG. In short, unless other considerations come into play –.

JBIG2 Another lossless compression for monochrome images, JBIG2 is more efficient than CCITT and has become more popular in recent years. It only gained support from PDF 1.5 onwards, however, so compatibility issues may have to be considered.

ZIP Although recognizable due to the popularity of ZIP files, the ZIP compression in PDF is very different. It uses the underlying algorithm in ZIP to compress color or monochrome images to images that have a limited bit-range of colors. Because of that, this compression is best used for diagrams, illustrations, or graphics that have large flat areas of solid colors. Flate Unlike the other compressions so far, is used to compress text and is very efficient compared to the other option in PDF, LZW.

It does encode more slowly but will result in smaller file sizes overall – particularly in text-intensive PDF documents. While there are other types of compression supported by PDF documents such as LZW and RLE, the list above should give you what you need to know to compress your PDF document in the most effective manner. It should be noted that aside from compressing a PDF, you can reduce its file size in other ways by optimizing the embedded font, discarding unnecessary objects, or flattening transparencies. In some cases however you may just want to use a more basic PDF editor to extract specific pages and create spin-off documents. Later you could learn to join them together again if need be. For example, you could use Movavi PDF Editor for Mac to do that. At the end of the day with the right compression you could dramatically reduce the file size of a PDF document.

The options listed above will provide you with all that you need to do just that.

I am trying to make a presentation for a conference, and am facing a problem that I cannot solve. I have a powerpoint presentation initially created with Powerpoint 2010 for Windows. I am facing picture compression issues as described. In addition to this saving problem, that pictures become worse quality every time I save the file, I am experiencing problems while trying to insert files. All pictures are inserted blurry. This applies for emf, png and, pdf. The solution does not work as pictures are still inserted in lower quality I see that it is possible to disable the feature in under Windows, but I cannot find these advanced settings from Powerpoint for Mac 2011.

How can I import/insert pictures to Powerpoint in their original quality? How can I control the picture compression? I am working on Powerpoint version 14.3.2 and OS X 10.8.3. I think I have a better answer, but I can't post it since the question is protected. If the pictures looks good in the original presentation and does not appear to lose quality, it may not actually be compressed, just zoomed. When PowerPoint copies it, it copies at the zoomed quality, rather than the original.

Try going back to the original PowerPoint file. Select the picture you want to copy. In the 'Picture Tools/Format' tab, press 'reset picture' (it may make the picture really large). Then copy the picture and paste into the final document (may then need to resize it there). – Nov 17 '16 at 14:25. You might be out of luck if you do not have the originals, as you know now the 2010 was compressing the pictures.

First save the picture to hard drive and open it with something like iPhoto. If you like the quality there we can continue. If you do not like the quality it is the end of the road, no advanced settings will help here. You could report the picture file size here, like is it in 500k- 1Meg, or more or less than 100k. In second case your only option is to keep the picture size as small as possible to retain the quality (resolution).

EDIT: If the pictures look good in original presentation then lets try this. Do not copy paste. Use presentation mode (full screen) and make a screenshot (press cmd+shift+4). You will get a cursor allowing you to select the picture., and once you have done that it will save it. Now take look at that result first, and if happy then import it in to power point.

Compress Pictures To Reduce The File Size In Office For Mac Download

In Word and PowerPoint for Mac 2011, you can change the compression behaviour for a placed bitmap image via the Format Picture ribbon. Double-click the image to bring that ribbon to the front, then click the Compress button and choose the option Keep Current Resolution.

Compress Pictures To Reduce The File Size In Office For Mac 2016

Or, choose File Reduce Size to bring up the dialog box. This needs to be done before the presentation is saved with the newly placed image.

How To Reduce The File Size In Photoshop

It's different for vector graphics from PDF files, which PowerPoint will simply convert into bitmap graphics and compress as soon as the presentation is saved with the newly placed PDF file. This can be avoided in MS Office by using vector graphics in the.EPS file format or in Microsoft's own.EMF format, which can be exported from most vector graphics editors, e.g., Inkscape, OpenOffice Draw, Adobe Illustrator, etc. (Beware: PDFs exported from bitmap editors like GIMP, Photoshop, or Pixelmator are not vector graphics images.).