Detailed information on uploading files to PhotoEntry is included in the PhotoEntry Step-by-Step Guide.
Files must be:
• A JPEG file
• No more than 1920 pixels wide or 1200 pixels high.
• In sRGB colour space (not Abode RGB)
• No more than 10MB in size
How do I export with the correct dimensions and colour space from Lightroom?
In the Library view, click on "Export..." In the "File Settings" section:
Set "Image Format" to "JPEG".
Set "Quality" to 100. (If the image is being resized down to the target dimensions this is unlikely to be a problem in terms of file size).
Set "Color Space" to "sRGB".
Ensure "Limit File Size To:" is un-checked.
In the Image Sizing section:
Ensure "Resize to Fit" is checked.
Choose the "Width & Height" option.
Set the "W:" and "H:" values to 1920 and 1200, and the units to "pixels".
Ensure "Don't Enlarge" is checked.
You may then want to save those settings as a Preset (use the "Add" button below the Preset pane on the left). Note that setting both the width and the height is correct, irrespective of the image's aspect ratio. Lightroom will adjust both the height and the width together (maintaining the aspect ratio) ensuring that neither is too big.
How do I export with the correct dimensions and colour space from Photoshop?
In Dec 2015 the export feature in Photoshop was enhanced to make this easier. In this example the target dimensions are width 1600 and height 1200.
Click on "File\Export\Export As..."
Ensure Format is JPG, and Quality 100%. (If the image is being resized down to the target dimensions this is unlikely to be a problem in terms of file size).
You now need to manually tweak the dimensions. First try setting the Image Size Width to 1920. If the Image Size Height now exceeds 1200, set it to 1200 (the width should drop down accordingly).
Default resampling is Bicubic Automatic. Try this first and if not happy experiment with others.
Ensure "Convert to sRGB" is checked.
Click "Export All..." and select where you want the exported image saved.
How do I export with the correct dimensions and colour space from Photoshop Elements?
To correctly do the export directly from Photoshop Elements is more fiddly than with Lightroom. There are several ways to do it, but none of them do all three of the things you want to (convert colour space, resize without having to manually tweak the dimensions, and export without risking changing the original). The following is one method.
Once you have started, do not save the image or you may overwrite your original:
If you have been editing the image, ensure it is saved.
Click on "Image\Convert Color Profile\Convert to sRGB Profile".
Click on "Image\Resize\Image Size...". Ensure that "Constrain Proportions" is checked, "Resample Image" is checked, and that "Bicubic" is selected in the bottom dropdown.
You now need to manually tweak the dimensions. First try setting the width to 1920 pixels. If the height now exceeds 1200, set it to 1200 (the width should drop down accordingly).
If you are in a 16-bit format (it says RGB/16 in the title) you need to convert to 8-bit before saving as a JPEG. Click on "Image\Mode\8 Bits/Channel".
Click on "Save As...", ensure you are saving as JPEG and select where you want the exported image saved.
Click on "File\Close" and do not save the changes.
And finally …
Tip: If your image is less than the full frame (1920*1200 pixels) and has a black background, then a pencil thin (2 or 3 pixels) border defines the extent of your image and will improve it hugely when projected. You can do this easily in Photoshop by using:
• Select All
• Choose 2 or 3 pixels wide