Small Size Low Res to Big pic High Res

Hey guys, im new to these forums and photoshop and have a question. Im in the Car wrapping buisness and by mistake i designed a wrap at 6"x4"(Roughly) at 72 dpi. When i send it to print off of course the massive enlargement of it(120"x48") leaves it extremely blurry. Now to try and fix this i opened up a new document with 120"x48" Dimensions at 300dpi and simply placed my 6x4 .psd wrap into my new document and fit it to the canvas; then rasterized it. To my surprise, it didn't even pixelate when i did this and shows up extremly clear. So my question is, did this actually make my picture 120"x48" at 300dpi, im confused.

yep i think you did, you probably have a nice res image while working on the 72dpi doc, so placing it into the 300 dpi doc is not a prob. i guess

Yes, you did. try to maximize the res. my recommendation are 300dpi

yep i think you did, you probably have a nice res image while working on the 72dpi doc, so placing it into the 300 dpi doc is not a prob. i guess

That's the mayor benefit of working with vector based shapes. Regardless being a photo editor, Photoshop is vector-based photo editor, so, many of your source files can be resized withoud loosing sharpness. This is not the usual in photo editors, but photoshop is able to do this.

Regards,
--
jjy

print size= 72 dpi @ 25%

Or usually 300 dpi @ 100% but I prefer to work at 72 for images over 50'
Better to try and get everything done in Ai then smart paste to Ps only for effects that Ai cant do like eye candy etc.