Photo tips

A. All photos should be “optimized for the web” before uploading. Lazy readers can skip paragraph “E”!

B. You do NOT need to CROP your images, however, uploading photos to any internet site, including the Naktiv site, needs a little consideration. Naturally we all want to upload a high quality image, however, this does not mean uploading the original file. Note that you should always do any desired ROTATION or image-manipulation off-site and to upload a correct final picture, as the on-site manipulation, and display, is highly browser sensitive.

C. Original photographic (digital images or scans) are designed for printing at 300 dpi or 600 dpi (dots per square inch). Most computer displays have a resolution of only 72 dpi. This is why when you print a sharp image on the web, it turns into a rubbish image on paper. Conversely, you don’t need all the information in the original file to display a sharp image on screen. An original (print-ready) image of say 4000 x 3000 pixels might have a huge file size of perhaps 4.1M (4,100k)* and be suitable for printing in a high quality photographic book at 600 dpi, or as a photograph in an exhibition, etc. However, most of this information is simply discarded somewhere within the process of taking it from disk and displaying it on screen at 72 dpi, but the human brain takes the minimal information and generates a sharp clear image for us. Clever, huh?

D. So, how much information do you actually need? Ideally, any image you upload to the Naktiv site will have a maximum of 1024 pixels along any dimension (width or height). Most photo-imaging software will let you open an original (high resolution print-ready) image and generate, export or save_as, a screen-compatible (low resolution web-ready) version of the content with 72 dpi. An export (web-ready) image of 1024 x 768 pixels might have a tiny file size of 182k (this is the same image) and be perfect for a web browser and your PC screen display. This is the file you want to upload.

E. the Naktiv site has a file size upload limit of 1000k (1M) and you can see this is ample to cope with any web-compatible image you might want to upload to the site. There is of course, lots of information about this topic on the ‘net itself. An online search will throw up many tools. Here is a concise and clear article about web sizing your images, and here is a simple to use online image Web Resizer tool

[*] As a guide 1M (megabyte) is the same as 1000k (kilobyte).

F. Sometimes, you might have trouble uploading an image using the Photo->Upload_new_image->Select_photo(s) link. If this is the case, check for the link to the “Basic_Uploader”, at the bottom of the photo uploading page, and see if using the simpler mechanism helps.

G. Another thing to be aware of is that the system will only accept JPG and PNG (upper or lower case) files, with ordinary alphanumeric file names. Please try to avoid any esoteric combinations of spaces, quotes, slashes and dashes, or weird characters in your filenames.


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