Ask your printer!
You want to give a printer originals that are at least as highly resloved as their print process. Many print shops can print with resolutions of about 600 dpi (dots per inch). sou if you have more than 600 pixels per inch than you shoould be OK and not suffer too much degradation.
To optimize the resolution of your JPEG image for high-quality printing, you should ensure that the image has a resolution of at least 300 pixels per inch (PPI) and is saved in the CMYK color mode. Additionally, make sure the image is saved at the appropriate dimensions for the desired print size to maintain sharpness and clarity.
High resolution for a JPEG image is typically considered to be around 300 pixels per inch (ppi) or higher. This level of resolution ensures that the image is sharp and detailed when viewed on a screen or printed.
You can artificially increase the resolution of a jpeg image in Adobe Photoshop, but there will be a loss in quality because data is "invented" through a process called interpolation. A low resolution image only contains X amount of data, and to increase its resolution, you are telling the computer software to add nonexistent data to the picture file. This is generally ok if you're only increasing the resolution by 10% for general print purposes, but to make a dramatic increase in resolution such as 72 dpi to 300 dpi, the image will most likely artifact (pixelate).The best and obvious solution would be to acquire the original image.
Depends for what the image is going to be used. If it's for a high resolution printing such as print ad in a magazine or poster TIFF format with LZW is preferred for quality purpose. JPEG format gives more options for compressing an image, especially for web usages or not for high quality printing purpose. Also it depends on the original image quality and resolution, if the quality of the original image is good, then JPEG will be a good option to use.
First: I assume you mean JPEG (or JPG) format. ((I have never come across jepeg as a format)) JPEG is an image format and most any image handling program can print it.If you have a file that does end in .jepeg, try renaming it .jpeg (or .jpg) and printing that.To print an image sometimes you can just right-click the image and select "Print" from the contest menu! If you have any program that recognizes the file it will open and open te print dialog (or Windows print wizard will open)
The average size of a JPEG file is typically around 1-5 megabytes, depending on the resolution and quality of the image.
It depends on the exact resolution of the image (check the properties) but probably not as you will get image blurring and pixellation.
If you have Photoshop or Lightroom installed just open that image in CameraRaw Photoshop plugin or in Lightroom and save or export image as JPEG, otherwise see related link and download software which allows you to convert raw images to jpeg.
To improve the JPEG image quality of your photos, you can try the following techniques: Use a higher resolution when capturing the photo. Avoid excessive compression when saving the image. Use photo editing software to adjust the brightness, contrast, and sharpness of the image. Avoid repeatedly saving the image in JPEG format, as this can lead to loss of quality.
Go to Image > Image Size. If you want to keep current Width and Height of the image uncheck Resample image then type new reolution in Resolution field. When you want to resample image (to change Width and Height to match new resolution) check Resample Image and type desired resolution in Resolution field.
The best JPEG resolution for high-quality digital images is typically 300 pixels per inch (ppi) or higher. This resolution ensures sharpness and clarity in the image when viewed on digital devices or printed.
The quality of the photo will drop noticeably and the image may become blurry on certain pixels.