A PDF file is among the most commonly used file types and can be used for images since they include automatic image compression. JPEGs on the other hand are great for images because they can compress very large files down to a small size.
The best format for scanning photos is typically a JPG or JPEG, as long as you keep compression to a minimum. A TIFF, which is an uncompressed image format is huge in comparison and cannot be displayed online. Professional photographers will often save their best images in both formats.
Select a resolution of at least 300 dots per inch, and up to 600 dpi if you plan to order enlargements. Take advantage of editing options. Most scanning software will allow you to crop, adjust color, adjust brightness and remove red-eye.
Save your file in a lossless format. JPG is not ideal as it is lossy. TIFF or PNG are the best formats as they compress the image file without creating artifacts or destroying the image quality. If you can help it, only use JPG to email files, never to archive them.
PNGs compress into a small file size better than JPEG files – there is minimal loss of image quality. They are the most widely accepted format among Internet users. They can scan in a full-color spectrum.
JPEG is generally a graphic image file whereas a PDF is a document file. This is the main difference between the two formats. Both of these can be converted into the other but generally they are used for different purposes.
Photo Scanning Method
However, the difference in quality between a scanned image and a picture of a print photo is astronomical. One looks like the actual photo, whereas the other looks like a photo of a photo because that's exactly what it is. With scanned images, the quality is clear and precise.
If the original photo is small, scan at 600 dpi or higher. If you scan a 2×3-inch photo at 1200 dpi, for example, it will become a 16×24-inch digital image without losing quality.
For photo prints, 300 dpi is fine in general; scan at 600 dpi to make sure you get all the details hidden in your prints. Scanning beyond 600 dpi is wasteful; it'll make the files bigger without giving you any additional image detail. Plus, the higher the resolution, the more time it takes to scan each photo.
If you want to convert your photos to digital copies at home, the best way to scan photos is by using a flatbed scanner. They are much less likely to damage your photos. They're also compact and will generally only require an ordinary laptop or computer to function.
So for printing an ID card, most image files are too small to see any better clarity in 600dpi over 300dpi. 600dpi printing also takes longer to print each card and reduces the lifetime of the print head due to the increased workload. So 300dpi is your best bet.
The higher the dpi the better the resolution and the better copy/print quality. For example, 1200 X 1200 dpi will give you better resolution or copy/print quality than 600 X 600 dpi, thus giving you better copy/print quality and better half tones.
Reducing Output Resolution on Laser Printers.
At 300 DPI a laser toner printers faster and uses less toner than at 600-1200 DPI.
Do not scan a freshly printed glossy photo until it has had sufficient time to cool. A glossy photo that has been freshly printed may adhere to the scanner's glass surface, ruining the surface of both the scanner and the photo itself.
Click on the "Sharpen Picture" icon on the Image Editing toolbar or click on "Page" and then "Sharpen Picture". When the Sharpen Picture dialog box appears, drag the slider to the right to sharpen the picture. Click the "OK" button to save the changes.
Benefits of scanners
Not only do scanners not damage your photos, they actually do the exact opposite – enhance your photos. Perks like automatic color correction and various editing enhancers can give your old photos a fresh look.
With professional family photos, such as images taken at a portrait studio, copyright belongs to the original photographer. Digitizing these photos and sharing them on platforms like blogs and social media can run into copyright protections.
Place the image for scanning.
Place documents face down on the printer or scanner surface. Align photo within the arrows or grids on the device. Close the lid if there is one. Press scan on the scanner or use the scanning program on your computer.
Answer. PDF stands for "portable document format". Essentially, the format is used when you need to save files that cannot be modified but still need to be easily shared and printed. Today almost everyone has a version of Adobe Reader or other program on their computer that can read a PDF file.
Benefits Of Using PDF For Emailing
A good idea when sending important documents such as a resume via email attachment or a link is to send them as PDFs. The PDF is a great format for professional correspondence because it's universal, versatile and accessible.
When preparing images for print, the highest quality images are desired. The ideal file format choice for print is TIFF, followed closely by PNG.