Best to send files cmyk or rgb?

I have created many product shots in Photoshop for a client's website. I saved all the original shots in high res as well as low res, all in rgb. My client has asked me to send some high res shots to some vendors who are them for print. What is the best format to send them in – rgb or or cmyk? Is it best to let the end user convert to cmyk when they go to print or should I do the converting beforehand? If i send them rgb does that allow the vendor to more easily apply their own profile, etc. or does it not matter? Thanks!

When possible, always do the CMYK conversion yourself. If you have the proper information, and do the conversion correctly, it will save a lot of headaches and give you much more control.
If you can discover what the final press conditions are for the images being printed, convert the RGB files to CMYK based on those press conditions. SImply ask your client. Or even better, engage in a little customer service and speak directly with the print provider. The question you want to ask is: "How do you want me to prepare the CMYK files for your press?" The range of answers the printer gives (depending upon how savvy they are) will include:
1) "Just send us CMYK. We don't use profiles."
2) "Use these Custom CMYK settings [xxx] to make the conversion."
3) "Use our custom profile:[xxx] to make the conversion."
4) "Use this canned profile:[xxx] to make the conversion."
In the first two cases, you're dealing with a printer who is probably well-meaning, but very behind-the-times. In both of those cases, your best chance at success is to ask what kind of press it will run on (web or sheet-fed) and convert using either the GRACoL2006_Coated1v2.icc profile (for a #1 sheet on a sheet-fed press), or the SWOP2006_Coated3v2.icc profile (for a #3 sheet on a web press.)
In the last two cases, follow their directions.
The GRACoL/SWOP2006 profiles are available for download from the IDEAlliance website:
http://www.idealliance.org/industry_resources/industrylibrary/icc_profiles_2006
Oh, and one more thing:
Fight mystery meat!! (Files with no profile.)
Be SURE to embed the profile into the CMYK file.

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I'm using ID CS2 and a Konica Minolta bizhub C353P printer.
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I don't know whether embedded profiles (not to be expected
for CMYK) or a global Output Intent are honoured.
How to edit images without loading the whole PDF in
Photoshop (which would rasterize everything):
Tools > Advanced Editing > TouchUp Object Tool > Right Mouse
Click on Image > Edit Image > (Opens Image in PhS) >
Edit here > Save > Close (Shows PDF with modified Image) >
Save As by new name.
Best regards --Gernot Hoffmann

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what if my file name has to be F0215DBFR* ??
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Dear Expert,
I am newbie in PI. Just tried to create File Content Conversion Scenario. Details as follow :
1. Source Directory ..\file\log\test_q.txt
2. Target Directory ..\file\log\xml\test_q.xml
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Hi,
Of course i set delete option in my CC sender, but the fail adapter couldn delete fail without any reason ?
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>>I have a file size of 400 MB to be picked to be the sender file adapter i am facing issue that the system is unable to even pick the file and place in the Q for Processing.
Never use File adapter for picking large file (maximum size which I have seen it to work successfully is 200 MB)
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Java proxy to use XI as a file mover
Also if you want some more info on Java proxies refer these blogs and articles:
/people/prasad.ulagappan2/blog/2005/06/27/asynchronous-inbound-java-proxy
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/a068cf2f-0401-0010-2aa9-f5ae4b2096f9
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f272165e-0401-0010-b4a1-e7eb8903501d
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Controlling a Communication Channel Externally Locate the document in its SAP Library structure
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HI,
Find below link for more help
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Best to send files cmyk or rgb?

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