So I've sat here saving files for an hour or so because there seems to be constant exporting issues that I cant seem to resolve (doesn't help that the actual export can take minutes at a time). I have a 12ft. x 12ft. banner I need to export for printing. I've run into 2 issues.
1. Saving a PNG. When saving a PNG the exported file will take the bottom part of the image repeat it at the top (cutting the top of the graphic off) and it also flips upside down.
2. Saving JPEG. Because of the PNG issue I tried to settle with a JPEG. The file seems fine but when I put open the file it saves at 8.333 ft and not 12 ft. So it reduces the dimensions when saved. I see no options in the exporting dialog box that would reduce the size of it but maybe I'm missing something.
Is this a common issue? Are there anyways around this? What can I do for save a 12ftx12ft file?
Thanks in Advanced!
We don't use png or jpg for printing.
#1 choice is pdf unless several large raster images are in the design then
#2 choice is tif with LZW Compression @ no more than 150dpi.
So for our in house banner prints we can print RGB PNG files with extreme accuracy, I'm actually very impressed with it, especially the green as I know that can be a difficult color to achieve in printing with CMYK inks. I'm unsure how it's able to do it. I think it reads the color profile and adjusts the colors to match it during the printing process.
And as for TIFF files I know I cant save accurate CMYK TIFF files. I tested your recommendations for TIFF files and it seemed to make no difference on the surface. Having CMYK TIFF files would probably help a lot, especially with outsourcing prints we cant do in house, but the colors are so far off I cant use them. Usually they are lightened and become very washed and gray looking.
I tried to attach the file here but it seems to not want to allow it. (Had to retype this whole thing)
Ok first you exceeded the 30,000 x 30,000 pixel limit for no reason, actually you're 46 pixels under Corel craps out.. Also there seems to be an issue with the file as PhotoZoom Pro sees it as layered but CorelDRAW does not.
This is a banner and 100 or 150 DPI would be more than fine, that would have you under the limit, I do art quality reproductions at 200 DPI on archival gloss and matt.
Second you created in CMYK and use PNG. PNG does not support CMYK so build the file in RGB. I have a TIF file in CMYK and it works fine. I can upload it for you if you want. I would just resample the thing to 150 and run it.
Same discussion for page 2 of your document except the image is RGB. As a 12" banner any ink jet can produce this at 100 or 150 DPI.
I have a 12' x 12' RGB image and it works fine.
I've just always heard 300 DPI is standard resolution and to go higher if possible. So I just kept the settings to be high and didn't realize there was a resolution cap; thanks for letting me know. As for CMYK. I only made a CMYK build to try testing TIFF files. But like I said above the CMYK save on TIFF files is always gray and washed out,
Also, what do you mean it's seen as layered with PhotoZoom Pro and not with Corel? What is PhotoZoom Pro?
PhotoZoom Pro is a plug-in for Photo-PAINT, I have the full Pro version. I believe you can get it now via the get more dialog.
This issue you're dealing with is because Corel has done very little to educate their users.
INK JET DOCUMENT RESOLUTIONS
Bill board 50 DPI
Banner Vehicles wrap Sign Panels 100 or 150 dpi
Art quality print 200 dpi.
DIGITAL PRINT ENGINES
Digital Print engines toner based 200 dpi
Digital print engines fliud based/press based 300 dpi
TRADITIONAL CMYK PRESS
Traditional press print cmyk 300 dpi
High quality AM & FM screening cmyk 400 dpi
In terms of "digital printers," if we're talking about the large format variety many go well beyond 200dpi. Many newer ones can print 1200dpi. Now, I would definitely not suggest anyone feed such printers huge pixel-based images at 1200dpi. But the increased resolution does help when printing vector graphics in razor sharp quality, text objects at tiny sizes, etc.Some of the pixel-based settings described are a bit high for what is commonly used. Many shops will print pixel-based imagery on both banners and vehicle wraps at 72ppi. Very often customer provided elements intended for use in the projects don't even meet those standards, and thus have to be fake up-rezzed or just printed as is with a more visible pixel grid.I've seen billboard printed with as little as 6ppi. Most billboard service bureaus prefer art set at 1" = 1' scale with the pixel-based artwork at 300ppi, which when blown up to full size equals 25ppi.
Bobby Henderson said:But the increased resolution does help when printing vector graphics in razor sharp quality
Vector graphics are not bound by pixels so resolution is irrelevant. Anything that's all vector should be pdf or eps. Even if a fairly small print has just 1 raster element I'll send it as pdf. Just make sure the pdf settings isn't downsampling the raster image.