Martin, not sure you've seen this information. If not it gives the image size recommendations. You do not need to create the Thumbnail size, the system does that automatically.
If you're aware of the sizing information are you having other issues in sizing things correctly? Are you using the "Save For Web & Devices" feature in Photoshop to scale the image?
Photos can be posted by linking to a photo on another website or by uploading a photo direct from your computer's hard drive to the NPN server. To link to a photo on another website (such as a personal website or hosting service), enter the URL of the photo (not the page) in the "Enter URL address of .jpg photo" field on the Post a Photo screen.
Uploading Photos
Maximum file size for uploaded photos is 1600 pixels/1MB (sRGB JPEG) for all galleries and forums. Photos are presented in three sizes;
Thumbnail (Galleries only) - 170 pixels longest side, automatically generated from Standard or Large files.
Standard - for files up to 500kb and 720 pixels on the longest side. Use the "Upload .jpg file" browse/upload function.
Large - for files larger than Standard and up to 1MB and 1600 pixels on the longest side (photo opens in new "View Larger Photo" window). This option automatically generates the Thumbnail and Standard size photos from a single large file. Use the "Upload an optional Larger Photo" browse/upload function. Option - you may prepare a Standard size file and upload it with your Large file
Posted by Keith Bauer on December 20, 2017 at 9:35 AM
Martin:
You mention that you create your images at 72 dpi. For web presentation the dpi number is completely meaningless. The only thing that matters is how long the image is on the longest edge. You should size your images at 1600 pixels long for the large version and 720 for the small version. You should NOT let the NPN software generate the 720 pixel version from the larger version as it does honor the color space. This has been a long standing problem that we just can't seem to get corrected.
I wrote an article earlier this year that describes several different methods for preparing images for web use. Here's the link.
Thank you very much, Keith. That extensive outline should be a very big help to anyone who is not up to speed on the process.
Posted by Martin Dunn on December 22, 2017 at 7:33 AM
Thanks for the replies and clarifications.
My issue is simply that if I create an image with 1200 pixels along the long side and then 'save for web' in Photoshop Elements, the file size is too large.
When I try to up load it, even if the file shows a size of under 1mb, NPN gives me a message saying my file is too large.
Hi Martin, gosh it sounds like you're doing things correctly. Not sure what might be the issue. I'm not using Elements so not sure if you see the same thing as I do using PS. As I recall they're very similar. Once I've set my Large file to a range of 1200-1600 I use "Save For Web & Devices" . I then use the drop down window in URHC to get to the "Optimize" feature and for the Larger image I set it to 900kb keeping it under the 1meg maximum. My smaller 720 image I set to 495kb just under the 500kb maximum there.
If you're doing things correctly you might send an email to Jim & Donna to see if for some reason your account is having issues......good luck.
Posted by Richard Ditch on December 22, 2017 at 12:44 PM
I suggest that your use the Save As option in PS Elements, rather than Save For Web. I looked at save options in PSE 14 using a 1200 pixel tif version of my current post in Avian.
On my Mac, Save For Web allows the user to set the file size of the jpeg version only approximately, as far as I can tell, using a pull down menu that offers a bunch of presets like Maximum shown on the top panel of the accompanying image. The resulting file size is shown under the right hand image - in this case 499.8KB. If that exceeds the NPN upper limit then a diiferent preset would have to be selected.
Using Save As instead gives a quality slider, just like in Photoshop proper, where the resulting image size is determined by dragging the slider between small file and large file. Save As has the added benefit of not stripping out the EXIF from the image, so your embedded copyright stays with the image and you can always recover the shooting parameters as well.
Posted by Martin Dunn on January 8, 2018 at 9:08 AM
Thanks Richard, that is useful and good to know.
I always just use 'save for web' because it is easy, but it does not give quite the needed amount of control.
Discussion
7 repliesI usually create my jpegs at 72 dpi but I find that I am having to reduce the size of almost every image before posting.
If you're aware of the sizing information are you having other issues in sizing things correctly? Are you using the "Save For Web & Devices" feature in Photoshop to scale the image?
Photos can be posted by linking to a photo on another website or by uploading a photo direct from your computer's hard drive to the NPN server. To link to a photo on another website (such as a personal website or hosting service), enter the URL of the photo (not the page) in the "Enter URL address of .jpg photo" field on the Post a Photo screen.
Uploading Photos
Maximum file size for uploaded photos is 1600 pixels/1MB (sRGB JPEG) for all galleries and forums. Photos are presented in three sizes;
You mention that you create your images at 72 dpi. For web presentation the dpi number is completely meaningless. The only thing that matters is how long the image is on the longest edge. You should size your images at 1600 pixels long for the large version and 720 for the small version. You should NOT let the NPN software generate the 720 pixel version from the larger version as it does honor the color space. This has been a long standing problem that we just can't seem to get corrected.
I wrote an article earlier this year that describes several different methods for preparing images for web use. Here's the link.
http://www.naturephotographers.net/imagecritique/bbs.cgi?a=vm&mr=79316&CGISESSID=38aea1421dbc88286cd21cf707e1a3ab&u=8668
My issue is simply that if I create an image with 1200 pixels along the long side and then 'save for web' in Photoshop Elements, the file size is too large.
When I try to up load it, even if the file shows a size of under 1mb, NPN gives me a message saying my file is too large.
If you're doing things correctly you might send an email to Jim & Donna to see if for some reason your account is having issues......good luck.
On my Mac, Save For Web allows the user to set the file size of the jpeg version only approximately, as far as I can tell, using a pull down menu that offers a bunch of presets like Maximum shown on the top panel of the accompanying image. The resulting file size is shown under the right hand image - in this case 499.8KB. If that exceeds the NPN upper limit then a diiferent preset would have to be selected.
Using Save As instead gives a quality slider, just like in Photoshop proper, where the resulting image size is determined by dragging the slider between small file and large file. Save As has the added benefit of not stripping out the EXIF from the image, so your embedded copyright stays with the image and you can always recover the shooting parameters as well.
I always just use 'save for web' because it is easy, but it does not give quite the needed amount of control.