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Working with reversed logos
When working with Reversed logos it’s worth considering what you’re going to upload for users without graphic applications.
For example a user may want a logo for a word document or powerpoint presentation.
Normally we would upload a vector file, say an Adobe Illustrator file. Ideally the file will include a non-filled(transparent) isolation background shape, so that we can ensure the logo has the correct isolation.
These vector files are simple and straightforward for a graphic pro with the right apps to use. However for a corporate user who’s likely to want to use the logo in a document or presentation we’ll need to supply something different.
Typically for this type of user we’d probably use a JPG as it’s widely understood and most users are comfortable with that format.
Unfortunately JPG’s don’t support transparency and will print a white block where the isolation area is. This is bad enough for a standard coloured logo. But for a white reversed logo (i.e. a white logo on a transparent background) it’s a disaster as all that will be displayed/printed is a white block.
So you’ll need to generate a raster file that can support transparency.
For high res print work we’d recommend a TIF. Just be careful when creating the Tif that you ensure you select the maintain transparency option when saving. If you don’t guess what – a white block (as we discovered to our embarrassment recently).
1. Open the vector file in Illustrator
2. Check the logo is filled correctly and the background has no fill.
3. Save as an .ai file
4. Open in Photoshop, ensuring the correct colourspace is selected and changing the rendered size to a size that you want to make available. (We’d suggest a5 size at 300dpi)
5. Check and adjust colourspace if required
6. Save as a Tif (with LZW compression, Interleaved Pixel Order, IBM PC Byte Order, ensure Save Transparency is checked and RLE layer compression)
Once you’ve generated your Tif upload and along with your vector files. You should do this for your CMYK, RGB and B&W variants. Don’t bother with the SPOT variant (unless you’re really keen and want to play with DCS files).
So that takes care of the high res printable file for the corporate user. You should also generate a web ready version. For this we’d recommend a generating .PNG file at 72dpi, 320px wide or high in RGB (ensuring you preserve transparency).
That should take care of most uses of a reversed logo.