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8 Ways to Compress PDF Documents on Desktop and Mobile
The beauty of the PDF format is that you can open it on any platform, whether desktop or mobile. It's easy. Create PDF documents Send, share, read, edit, and work everywhere. Unfortunately, some PDF files are very large. This poses problems we'll discuss below, along with a solution: compress PDF documents on Windows, macOS, Linux, Android, and iOS.
After installing the application, click the button "browse" To select a PDF file, select "Save as" To choose a location to save the output. By default, it will choose the same folder where the original file is located.
You selected the eBook option to maintain image quality at medium resolution. The eBook you selected is 9.21 MB in size. You can play around with the settings to see if the final results meet your needs.
2. Click the button "pressure" To begin the process, it won't take long to complete. The output file size was only 471 KB, which is quite impressive, and it took only three seconds. The text is clear and the images are sharp.
Prepare PDF Compressor Another Windows utility for compressing PDF files.
Open The application Note that the user interface is a bit busy. We'll convert the PDF to grayscale (black and white) to further reduce the PDF file size.
Click folder icon To select a PDF file, select the option Black and white document - halftone.
Choose Output file qualityBelow, towards the bottom, you can also adjust the image resolution for more control over the output size.
Click the button "pressure" To begin. In our example, the file size is reduced. 9.21 megabytes to 181 KB.
How to Compress PDF Documents on macOS
Preview provides a native option to reduce file size when exporting a PDF; however, the results are often less than satisfactory. There are better options out there, as we discuss below.
One of them is Quartz FiltersIt adds additional filters to the default filters Apple offers in Preview to reduce PDF file size. Quartz is also more consistent with the quality and size of compressed files.
There are also many third-party apps available in the App Store.
Lightweight PDF (macOS)
Install and open LightweightPDF Drag and drop PDF file which you want to compress in macOS.
2. The process will start. Pressure Instantly. No buttons to press or Options to choose fromNote that the new compressed file will replace the existing file, so you may want to create a copy first.
3. When the process is complete, the application will display the results.
PDF Shrink (macOS)
Works PDF Shrink Like Lightweight PDF, but with one notable difference: When you drop a PDF file in, it lets you specify the output quality and resolution. You can manipulate these values to find a balance where files are compressed with minimal quality loss.
Unlike Lightweight PDF, it will ask you to choose a download location instead of overwriting the existing file.
Ghostscript (Linux)
Open Command line tool , also known as Bus TerminalIf you don't know how to do this, click on Ubuntu icon To open Dash And type Bus Terminal To search for and open it.
Use the command below to install: Ghostscript.
sudo apt install ghostscript
3. The command below will reduce the size of the PDF file. Note that you will need to change the name of the PDF file in the command accordingly. In my case, it was save The file is in your Downloads folder. Make sure the path is correct as well, as it won't be able to detect the PDF file for compression.
Open The application Enjoy the simple graphical user interface. Select PDF file which you want to compress and select the type. If you are not sure, choose "a screen" Or play with different options until you get a satisfactory result.
2. Click the button “Press now.”
3. You will receive a notification when Compress PDF.
This quick chart shows the different types of compression Densify has to offer and what they mean for your reference.
Compress PDF File (Android)
After installing Compress PDF File, , click on “Open PDF” To select a file, click "pressure" To get started, you can choose the compression level, but I found the recommended settings were good enough.
You'll see a pop-up window sharing how much space you've saved and asking how you want to use it. Save compressed PDF file on Android.
We've seen why PDF compression is necessary and how we can compress PDF files on various desktop and mobile operating systems. But what are the disadvantages of compressing PDF files? These include:
Not all tools are free. Some are paid, while others follow a freemium model.
Compressing PDF files too much can reduce the quality of embedded images, ruining the reader experience.
Excessive compression can also break text and other elements, making the PDF unreadable.
Frequently Asked Questions
Q1. What happens when I compress PDF files? answer. Images and other graphic materials in a PDF are downscaled. This means they are reproduced at a lower resolution and contain fewer pixels, thus taking up less space.
Q2. Should I compress PDF files offline? answer. There are privacy and security risks when uploading files online to a third-party developer's servers. If you believe the document is sensitive, it's best to compress it offline.
Q3. How long does it take to compress PDF files? answer. This depends on the size of the PDF file. However, during our tests, compressing a 20MB file took less than 5 seconds.
Conclusion
If compression isn't convenient for you—for example, the quality isn't up to par—you can split the PDF into smaller parts or split it. The downside to this method is that multiple PDF files will be created, and the user will have to open each one separately.
Another option is to convert the PDF to grayscale. This is useful when the PDF contains a very large number of images. Converting the PDF to grayscale will convert the images to black and white, along with the fonts and all other color elements, reducing the PDF file size without compromising quality.
