Clinic on Resizing images with IrfanView is a free Model Railroad Discussion Forum and photo gallery. We cover all scales and sizes of model railroads. Whether you're a master model railroader or just getting started, you'll find something of interest here.


Diesel Detail Freak
This clinic is just a TAD longer, as I've also added the sharpening portion, as the resizing isn't allways perfect.

You can download IrfanView here.

This topic begins after you have allready opened the image with IrfanView.

Click the 'Image' tab, and select Resize/Resample or use the keyboard short cut, Ctrl + R.
View attachment 3759

Making sure "Preserve aspect ratio" is selected, type 1024 or 800 into the Width box. The Height should scale accordingly. You can also select the bullet next to the size you would like. Now click OK
View attachment 3758

Sharpening, this step can be left out, but I added it to help make your images clearer. Click the 'Image' tab, and select Sharpen, or use the keyboard short cut, Shift + S.
View attachment 3760

Now to save. Click the 'File' tab, and select Save or Save as.... (continued in next post...)
View attachment 3761
Last edited by a moderator:


Diesel Detail Freak
Select JPG - JPEG Files for the 'Save as type' (as this works best on the internet and anyone's computer). Now to the right you'll see a 'JPEG/GIF Save Options' box. Slide the 'Save Quality' line to 75%-80%. This is the compression ratio. Type in your file name (if Save as...), and click Save.
View attachment 3762

Now you're done, go upload the files!

Affiliate Disclosure: We may receive a commision from some of the links and ads shown on this website (Learn More Here) is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to - An online railroad bookstore featuring a curated selection of new and used railroad books. Railroad pictorials, railroad history, steam locomotives, passenger trains, modern railroading. Hundreds of titles available, most at discount prices! We also have a video and children's book section. - An online model railroad bookstore featuring a curated selection of new and used books. Layout design, track plans, scenery and structure building, wiring, DCC, Tinplate, Toy Trains, Price Guides and more.