How to get 62 mb file?

I have someone requesting a specific file size, but I don't see an option for setting filesize, just all of the parameters that lead up to it. How do I set all of my uploads to 62mb/file? I have Lightroom, PS4, and genuine fractals. I am PC.

File size depends upon the bit depth, document resolution, document width, height, and the amount of meta data (including the document color profile) in the file, along with 'file overhead' for the OS.

You could play around all day long in Photoshop changing document resolution and document size or pixel dimensions to get a 62MB file size, but what would be the point?

To my mind, it would be best to ask them what is the document size they want (in inches), at what document resolution (dpi), the file type they want (psd, tif, jpeg), and the color profile (Adobe RGB, sRGB, etc.).

Hopefully, others will chime in with their thoughts on this.

--P

This does seem like there must be a misunderstanding somewhere, like maybe they don't quite know what they're asking?

But, just in case you have to , in PS you can go to "Image"->"Image Size" and change the width until the "Pixel dimensions" listed at the top is in the 60-61M range (assuming an 8 bit image), then "Save as" an uncompressed image format, like PBM, and that's what you'll get as the file size.

Thanks. This is sort of the way I had it figured, But now knowing for sure, I thought it better to ask. All of the help is appreciated. One thing that is interesting is that genuine fractals sizing gets me well above the mark for the requested dimensions while Lighroom brings me in significantly below it.

..."Save as" an uncompressed image format, like PBM

Just curious, Jeff, but what is a PBM file? Never heard of that file type before.

--P

Preston, PBM is listed as "Portable Bit Map". Not sure if that is like PSD or not. Maybe Jeff will update again.

Uncompressed TIFF would be similar to, and a lot more common for photos, than a PBM.

Robert - I would definitely ask what image size and ppi (or dpi - same thing for an image file) they want. That should determine your file size (which you actually shouldn't worry about).

There are still folks out there that equate file size with the amount of resolution/detail information in the file. When I first got into photography, a lot of people talked about the size of the files a camera produced, rather than the actual image information (I think this has died as storage got much cheaper). And while there IS a relationship between the two, it's not that direct that you should be specifying a file size.

PBM was not a serious suggestion , and the more correct non-serious suggestion would be PPM anyway, the RGB color version, I just thought it was funny it's a file format option PS gives you. It's a very old format that has an ascii encoding so you can include it in the body of a text email message. As David said, uncompressed TIFF would be the way to go if you were really attempting this.

I should add that, really, losslessly compressed (LZW) TIFF would be better since the file size would be smaller.