![]() Not really sure what it does to shrink it, but it works, especially if you have a good number of images that are eating up a lot of space. When you go to File – Print, choose Adobe PDF from the drop down list of printers:Īmazingly enough, I’ve been able to shrink a 20 MB PDF file down to 3 MB just by using this method. Basically, you open the PDF file in Adobe Reader and print it to the Adobe PDF printer.Ī lot of time this works really well and will significantly reduce the size of your PDF file. The easiest way to try and shrink a PDF file is to perform a little trick, which basically is printing the PDF document to a PDF file. ![]() You can also play around with the Image Compression and see what type of benefit you get. If you only need the PDF to view on a computer, 72 pixels/inch will greatly reduce the size of your PDF if the images are large. Here you can remove all values from Image Sampling and enter a value for Resolution. Note that adjusting settings here is only useful if you have a lot of high resolution images in your PDF file. Then, click on Filters and click on Reduce File Size. Just press Command + Spacebar and start typing colorsync. If you want to fine-tune it, you can open the ColorSync Utility. I was able to get a PDF file from 500 KB down to only 82 KB using this filter. Click on the drop down and select Reduce File Size.Ĭlick Save and you’re done. You’ll get a pop-up dialog and one of the options at the bottom is Quartz Filter. Now, click on File and then click on Export. In that case, just right-click and choose Open With. By default, PDF files will open in Preview unless you installed Adobe Reader or a third-party PDF viewer. Firstly, open your PDF file in Preview by just double-clicking on it in Finder. If you have a Mac, there is a great and easy way to significantly reduce the size of a PDF file using the built in Preview app. It also supports encrypted PDF documents and can work on a batch of hundreds or even thousands of PDF files at once. It supports lossless compression, so you should not see any reduction in the quality of the PDF. PDF Compressor is a free program you can download for Windows XP/Vista/7/8 that lets you quickly and effectively reduce the size of one or many PDF files. In addition, you can remove bookmarks, remove PDF layers, remove annotations, remove page labels and manually adjust the quality for color and monochrome image compression. It has a bunch of options and some presets like high compression, low image quality or low compression, high image quality, etc. Not too bad, however, on the Mac (Method 2), I was able to get that same PDF down to only 82 KB.Īnother online tool I use to compress PDF files is Neevia Compress PDF. It was able to take a 500 KB file and shrink it down to about 368 KB. In this example, the compressed PDF was 715KB, about one-fourth the size of the original.What’s nice is that you can use it anywhere or any operating system and it even supports the new drag and drop feature of HTML 5, which is a nice convenience. I find using the /ebook setting for the compression is a good compromise between file size and quality. If you want, you can specify another name for the new PDF with: ps2pdf -dPDFSETTINGS= /ebook -sOutputFile=Lesson5b.pdf Lesson5.ps This overwrites your previous Lesson5.pdf with a smaller file (a good reason for making a backup). Next, enter: ps2pdf -dPDFSETTINGS= /ebook Lesson5.ps For example, this example file was 3.1MB as a PDF and ballooned to 29MB as a PS file! Have faith. This creates a file named Lesson5.ps, and if you look at its size, you might be alarmed. The first step is to convert it to a PostScript file by entering: pdf2ps -dLanguageLevel= 3 Lesson5.pdf In this example, I'll show you how to shrink a file named Lesson5.pdf. How to shrink a PDFįirst, make a backup of the original PDF file with a different name (in case you make an error somewhere). ![]() So I pieced together the following by combining information from the man pages with various other bits of advice I found on the internet. The man pages for these commands are terse, and it was challenging to find good documentation for them and their settings. This solution shrinks the size of PDF files, making them easier to share via email. I found an answer to the latter problem using the commands pdf2ps and ps2pdf, which are part of the Ghostscript package. Unfortunately, the quality of the scans-the words, numbers, and graphics-is unsuitable using the Text setting, but the files are quite large-up to 5MB for just a few pages-using the Image setting. Simple Scan has two resolution settings, Images and Text, and saves files as PDFs. Free online course: RHEL Technical Overview.
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