Poster printing is available at JHU’s Digital Media Center on the Homewood Campus or at Fed Ex. Both are located at 3003 N. Charles Street.
Requirements
- All posters must be submitted for printing correctly sized and in a properly formatted PDF or PNG image file format.
- Posters should be no printed no larger than 32×45
- DPI must be set below 144
- No Transparency
- No Alpha Chanel
- No Interlacing
- No Anti-Aliasing
Notes
- All Applications – Set document size in inches for the poster before editing. Failure to do so will result in pixelation and distortion.
- For most applications this can be set under File – Page Setup or File – Document Setup.
- All Applications – Do not use a transparent or dark background.
- Posters with dark backgrounds will not be printed due to excessive ink usage and long drying times.
- Posters with transparent backgrounds will not print correctly.
- To save a PNG from Illustrator:
- Click File and select Export then change the format to PNG
- Set export PNG options to RGB, 150 ppi, Background White, no interlace and no Anti-Alias
- To save a PNG from Photoshop:
- Click File and select Save As
- Set Format to PNG and click Save
- Version Specific Options – If prompted set to RGB, Non-interlaced and no Anti-Aliasing
- To save a PNG from PowerPoint – Mac:
- Click File and select Save As
- Change Format to PNG then click Options
- Office 2008 and earlier – Set the DPI to 144 DPI and click OK, then Save
- Office 2011:
- Click File and select Save As
- Set Format to PDF and Save
- Open PDF in Preview
- Click File and select Save As
- Set Format to PNG and set the Resolution to 150, then click Save
- To save a PNG from Inkscape (cross-platform open-source alternative to Illustrator):
- Click File and select Document Properties and click on the box next to Background
- Under the RGB tab set A to 255
- Click File and select Export Bitmap
- Select the Page tab, set the resolution to 150 dpi and click Export
- To save a PNG from PowerPoint – Windows (NOT RECOMMENDED):
- Office for Windows – Is limited to a maximum output of 72 or 96 DPI which results in pixelated posters; to avoid this you will need to use another program such as PDFCreator to produce the PNG.
- View the Windows Office instructions using PDFCreator pdf