Let’s delve deeper into each of these file formats and find out why they are recommended for their file type. There additional hints are other reasons PNG isn’t the most suitable file format for printing. Let’s also look at which file formats would work better for the job. Most of the PNG save options relate to metadata standards, such as EXIF, XMP, and IPTC, but they’re pretty self-explanatory and they don’t affect your image quality at all. You might be able to shave off a few bytes by skipping the data, but it won’t make a huge difference. JPG files first came into wide use because of their ability to be compressed and made smaller, which enabled their ease of use over the Internet. Web-based images don’t require the same amount of digital information, as, say, a large physical print requires to render itself as high-detail.

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Unlike an alternative format such as JSON, CSV is not formalized or standardized. This means that something may be called a CSV, but not necessarily that it will be read properly by the CSV parser you happen to be using. Shafranovich states, “Within the header and each record, there may be one or more fields, separated by commas.” Databases that include multiple relations cannot be exported as a single CSV file. Similarly, CSV cannot naturally represent hierarchical or object-oriented data.

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These formats have become the most popular because of their compatibility with modern browsers, broadband speeds, and the needs of average users. Possibly the most familiar of the file formats, it’s commonly used for a reason. It’s often the default setting on cameras, so by exposure alone, this is the most likely image type users will come across. It also supports a full spectrum of colors, and almost all devices and programs can open and save to the JPEG format — making it the most universal of the four. JPEG files are ideal when you want to keep file size down and don’t mind giving up a little quality to create a very small file. The smallest of the four image formats, GIF is a great file type to use if you’re working with small graphics, like banners, charts, and buttons.

Once you get to medium and low, the quality will suffer significantly. JPEGs tend to be best for photos or drawings, which have fewer sharp transitions than text. Below is the test photo in high-quality, medium-quality, and low-quality JPEG formats, with their respective sizes.

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Typically, compression techniques decrease file size without losing any information. This may improve the files’ entropy and make them appear more random since all conceivable bytes become more frequent. This makes them essential to the file compression process. Recently, users have shifted towards more efficient and rapid compression methods.

Too bad about the .zip method, have 1000’s of mp3s on my hd. Yes, sending them as attachments will not affect the quality, or playability, in any way.

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