Are PDF Files Lossy or Lossless?
PDF compression is a handy way of reducing the bulky size of a PDF file to make it more compatible for certain tasks like printing, uploading or sharing by email.
However, there are different types of compression depending on what they do and these are known as lossy and lossless compression! Well, how do you know if PDF files are lossy or lossless?
In short, lossless compression means that there is no information lost during the compression which is what makes PDF files different from other file formats because they are mostly lossless. A lossless compression is also when the file can be uncompressed and have the uncompressed file looking exactly like it did before any compression!
On the other hand, JPG images, for example, are lossy because when they are compression, they lose data and quality when compressed.
There are benefits to both lossy and lossless compression and both have different uses depending what you need.
For example, lossless compression is really great for maintaining quality. Your PDF files and the images in them will always look the same as when you started, but your file might not be compressed enough for your needs with the file still being relatively bulky.
Lossy compression is different because it decides how much of an image’s data can be thrown away or not. The end result is that you have a similar image, but not an exact one. Lossy images tend to me a lot smaller than the original lossless image.
Lossless PDF Compression
Lossless PDF compression reorganizes your document’s data and stories it more effectively but never compromises the document’s vital information.
Lossless compression has the main focus of saving you space, but never losing important details.
Lossless compression reduces a file’s size with no loss of quality. The resulting files are typically much larger than image and audio files compressed with lossy compression.
Lossy PDF Compression
PDF lossy compress is most commonly used when the user needs to compress multimedia data that consists of video, audio and still images.
Lossy file compression results in lost data and quality from the original version. The “lossiness” of an image file may show up as jagged edges or pixelated areas. In audio files, the lossiness may produce a watery sound or reduce the dynamic range of the audio.
Because lossy compression removes data from the original file, the resulting file often takes up much less disk space than the original. A file that uses greater compression will take up less space, but may not look or sound as good as a less compressed file.
Lossy compression is generally used for video and sound, where a certain amount of information loss will not be detected by most users.
Online PDF Compressor
Our PDF Manager tool helps you to compress your PDF files by lossless compression. This means that you can choose the level of compression you want before you reduce the file size, so that you don’t have to sacrifice on quality.
Then you can choose between extreme compression, recommended compression or less compression. All have different levels of compression and quality, so you can perfectly suit your needs.
And then, just like that, you have a compressed PDF file ready for download in a lossless. There are a large number of online, free PDF extractors and decompressors that you can use to regain your original file once more.
Without compromising information, data or quality, your PDF file will take up much less space on your computer’s drive.
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