PNG: This format is good for images that need transparency (like logos). It keeps the quality high and is often used for web graphics.
GIF: This format is mainly used for simple animations and small images. It supports only a limited number of colors, which makes it less suitable for detailed images.
WEBP: A newer format that provides high-quality images with smaller file sizes. It supports both static images and animations, making it versatile for web use.
BMP: This is a basic image format that doesn’t compress images, so the quality is high, but the file sizes can be very large. It’s not commonly used for sharing online.
TIFF: This format is often used in professional printing because it maintains high quality and supports layers. It’s great for images that need to be edited or printed at large sizes.
AI: This is a format used by Adobe Illustrator. It’s mainly for vector graphics, which can be resized without losing quality. It’s often used for logos and illustrations.
EPS: Similar to AI, this format is also for vector graphics and is widely used for printing. It can be opened in various graphic design programs.
SVG: This is a web-friendly vector format that allows images to be scaled without losing quality. It’s often used for logos and icons on websites.
PSD: This is the format used by Adobe Photoshop. It supports layers and is great for editing images, but it’s not ideal for printing directly.
CDR: This is a format used by CorelDRAW, another graphic design software. It’s mainly for vector graphics and is used for creating illustrations and designs.
DXF: This format is used for CAD (Computer-Aided Design) drawings. It’s commonly used in engineering and architecture for technical drawings.
DWG: Another CAD format, DWG files contain 2D and 3D design data. It’s widely used in engineering and architectural design.
PDF: This format is great for sharing documents that include images and text. It keeps the layout intact, making it ideal for printing and viewing on different devices.
These formats serve different purposes, so the choice depends on what you need the image for, whether it’s for printing, sharing online, or editing.
A simple explanation of these printing colour terms:
2 Colour Printing: This means using exactly 2 ink colors total. The first "color" is usually the paper or material you're printing on (like white paper), and then you add one actual ink color (like black text or a blue logo). Sometimes it's two ink colors plus the paper color.
4 Colour Printing: This uses 4 specific ink colors: Cyan (blue), Magenta (pink/red), Yellow, and Black (called CMYK). By mixing these 4 inks in different combinations, printers can create most colors you see in magazines and brochures. This is the standard for most color printing.
Full Colour: This means printing with the complete range of colors possible - usually achieved through 4 colour (CMYK) printing, but sometimes with additional special inks. This gives you vibrant photos and colorful graphics with all the colors your eye can see.
Greyscale: This is printing in shades of grey only - from pure white to pure black, with various grey tones in between. Think of old black and white photographs, but with smooth grey transitions.
Half Tone: This is a printing technique that creates the illusion of different shades and colors by using tiny dots of ink. Up close, you'd see dots of varying sizes, but from normal viewing distance, your eye blends them together to see smooth colors or grey tones. Newspapers use this technique - look closely at a newspaper photo and you'll see the dots!
These terms help printers and customers communicate about what kind of color output they want and what it will cost.
DPI measures how detailed a printed image will be by counting how many tiny ink dots the printer can fit into one 2.5cm (inch) of space. However, what should be made clear from the onstart, is the important relationship between Worktop or Screen settings and Printer capabilities. The ideal environment is to know the Printers DPI and attempt to match that value with your Graphics application.
Higher DPI = More Detail *:
300 DPI means 300 dots in every inch - this gives you sharp, crisp images perfect for professional printing.
150 DPI has fewer dots per inch - good for everyday documents but images might look a bit fuzzy.
72 DPI is very low resolution - fine for viewing on computer screens but will look pixelated and blurry when printed.
Think of it like this: Imagine painting a picture with dots. If you use lots of tiny dots close together (high DPI), your picture looks smooth and detailed. If you use fewer, larger dots spread apart (low DPI), your picture looks rough and blocky.
Common DPI guidelines:
300 DPI: Professional printing, photos, brochures.
150 DPI: Basic documents, internal newsletters.
72 DPI: Web images, email attachments (not good for printing).
When a printer asks about DPI, they want to know how sharp and detailed you want your final printed piece to be. Higher DPI takes more ink and time, so it usually costs more, but the quality is much better.
* Note: Sometimes you'll hear "PPI" (Pixels Per Inch) - it's basically the same concept but refers to digital images before they're printed.