Administrator
Jerry Gibbs
I have found a photo ReSIZER for my iPad. It measures in px. How do I equate px to KB?
Est. 1998 — 27 years of woodworking knowledge
Administrator
Jerry Gibbs
I have found a photo ReSIZER for my iPad. It measures in px. How do I equate px to KB?
Re: Administrator *LINK*
JL
Too many variables.
Part of the issue is size, color and image density are other factors. So there is no "tried and true" way of equalizing pixels w/ KB. I am afraid trial and error will work the best.
Try this link.
Pixel calculator
Thanks
resizing to file size limit
John K Jordan
I prepare a lot of pictures for posting. The hands-down easiest method costs a bit but has incredible benefits - Photoshop Elements has a simple command that will do the trial and error for you and instantly compress any image to the desired file size - I set it to 99kb. I've resized over 2000 files this way for posting on various forums.
Another benefit of using PS Elements is it includes many of the powerful Photoshop editing and image composition functions, arguably the best in the field.
For a free method, Ellis once posted this about a web-based resizer that will also do the trick in one step. He included complete instructions here:
JKJ
Re: resizing to file size limit
Stuart Johnson
Photoshop Elements has a simple command
John, I use Photoshop but haven't seen the command. How do you apply it?
Photoshop: resizing/optimizing to file size
John K Jordan
This is in the both the full version of Photoshop I use (PS 6 I think), and PS Elements (version 13 I think)
The function is File/Save for Web.
I use the keyboard shortcut, Ctrl-Alt-Shift-S
I see this dialog box:

1) Type in desired pixel image size, usually something like 640 to 800 or so on the longest dimension. You can resize the image first in PS but using this field the working image in PS remains unchanged.
2) Click the icon in the upper right corner and click "Optimize to File Size".
3) Enter "99" in the "Desired File Size" field.
4) Click OK to accept then Save.
I actually just hit enter twice here to get both of these.
Provide a new file name and a place to save the file.
Notes:
- When you click OK in step 4 it will give you the actual file size and the compression quality below the right-hand image.
- The image will automatically be flattened if needed and saved as a JPG which saves some keystrokes and clicks and doesn't mess with any layers and such in the working image in PS.
- If I've done image editing or added levels and text I usually use Ctrl-Shift-S at this point and save time image as a PSD file.
- The next time you use this feature it should remember the file size you used last.
JKJ
Re: Photoshop: resizing/optimizing to file size
Stuart Johnson
Thanks, that was too easy and sure beats guessing and making changes until it fits.
If you use Windows 10...
Pat Evans
you can resize to 4 different sizes in File Explorer. It's trial and error to get the size you need, but it's free. Right click the photo, click send to, click mail recipient, select a size, then click attach. Next use File Explorer to find your picture under your user name, AppData, Local, Temp. Attach that file to post it on WoodCentral.