PDF reduce file size filters and CMYK to RGB conversion

This doesn't seem to be on-topic to this forum, but I'm hoping someone here has the expertise to answer my question. We have some scripts which take a series of press-quality pdfs and use the "reduce file size" filter to prepare them for viewing on the web. We run these scripts on a 10.4 machine, and the filter works very well, reliably reducing file sizes of all sorts of pages.
When we tried to upgrade the machine, we discovered that the quartz filtering has changed in 10.5 and 10.6. While it's usually an improvement, getting maybe 5-10% better compression ratios, it has become unreliable in that about 5% of my files fail spectacularly -- they blow up to 3, 4, 5, 6 times the original size.
The other thing that happens is that the 10.5/10.6 filters munge the colors up. I found the solution to this -- in the ColorSynchUtility, make a duplicate of the Reduce File Size filter, and add a Color Management Component called Convert To Profile. This allows me to set a filter that converts the CMYK content to RGB. The problem is that there are about 40 choices of profiles, and it's not at all clear what I should use. Many of them have printer manufacturer's names in them, some say "Adobe", others have cryptic codes (probably referring to various RFCs and schemes). I've tried a couple of the ones that don't look like they are for printers, basically chosen at random. They all produce files of slightly different sizes for the reductions that go well, but on the files that blow up, some filters are better than others. (For example, I have a 5MB page which reduces to 1.4MB with the 10.4 filter, but blows up to 27MB with the "sRGB IE61966-2.1" profile, but only 12MB with the "Adobe RGB" profile.)
So I have 2 questions:
1) Is there any way to configure a 10.5/10.6 custom profile so that it behaves as reliably as the 10.4 "stock" PDF Reduce File Size works? It doesn't have to be the most wonderful compression algorithm out there, just so that it never or rarely has a file blow up in size.
2) For converting press documents to pdfs that are going to go on the web, what is a good "Convert to profile" to use of the 40-some choices on the pull-down menu?

Cathy,
You have posted your question in a forum dedicated to the Final Cut Studio application Color. It is a very specialized program to grade (adjust) the color in video/film images. We know nothing regarding PDFs.
Have you tried posting this on an Adobe support site?
Good luck,
x

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PDF Reduce File Size makes certain pdfs HUGE

Generally reduce file size works great for me but certain files, those coming from someone using Microsoft Publisher in particular, result in larger pdfs. She sends me newsletters for a website and sometimes the 3 page pdfs are 2-4mb. I tried opening in Preview and re-saving them using the Reduce File Size filter and the result is that they ballon up to 50-100mb!! Info for the file reveals that the pdf producer is GPL Ghostscript 8.15 and the content creator is PScript5.dll Version 5.2.2. I seem to be able to open and reduce file size using Acrobat so I'm not quite sure why Preview is choking on them.

geekinthegarden wrote:
Generally reduce file size works great...
Microsoft Publisher...Ghostscript...PScript5.dll
I seem to be able to open and reduce file size using Acrobat so I'm not quite sure why Preview is choking on them.
Hi geekinthegarden- This does not surprise me. There are many variations and reiterations in specifications of the PDF format.
Going from Ghostscript language interpreter, to Apple in rendering could introduce complications which we will not be able to sort out in this forum encapsulating a complete description of a fixed-layout 2D documents that includes the text, fonts, images, and 2D vector graphics which compose the documents.
Suffice to say it is not a perfect science.
Print PDF has a compress PDF file option as well as ColorSynch in your /Utilities folder +reduce file size+ option for PDF's. This may or may not be of use.
You found your workaround using Acrobat, this is part of the value of having more than one PDF viewer, good computing!

Colorsync Utility: PDF Compression vs. Reduce File Size filters

What's the difference between these two? I used Automator to make two applications, which I think I screwed up, because they're not reducing file sizes now. 1 would make 100+ pngs into a pdf and use "reduce file size," I think. 300 MB would become 80 MB, e.g. I would then use a not-so-great PDF application called PDFStudio9 (because I lost my Acrobat DVD and couldn't get a replacement) to OCR that reduced-size pdf. At which point I would run the other application, which I think compressed the OCR'd pdf. Which would be about 40 MB at the end. But I'm not sure if that's the order of compression I used.
So what's the difference between the two types of filters, and when would I want to use each for ultimately creating a non-titanic-sized pdf?

Cathy,
You have posted your question in a forum dedicated to the Final Cut Studio application Color. It is a very specialized program to grade (adjust) the color in video/film images. We know nothing regarding PDFs.
Have you tried posting this on an Adobe support site?
Good luck,
x

Automator pdf reduce file size action

I have a saved action to reduce file size for pdfs and want to change the resolution, but it's grayed out. Can someone tell me how I can do this?
Thank you!

Cathy,
You have posted your question in a forum dedicated to the Final Cut Studio application Color. It is a very specialized program to grade (adjust) the color in video/film images. We know nothing regarding PDFs.
Have you tried posting this on an Adobe support site?
Good luck,
x

Interative pdfs- reducing file size?

Hi again,
I have created a page turning pdf and cannot work out how to reduce the file size of this.I have tried reducing the size of the jpeg to minimum in ad settings and obviously using 72dpi with a result in no reduction of file size. Is there anything anyone can think of just to get it down y 1 meg? I want to change the pdf from 6.4 to <5mg to make it email friendly! If have have not been very clear, please feel free to ask me more questions if you think you may be able to help.
Many thanks,
Sam

PDF files don't support "page-turning", so what you've made is a single-page PDF file containing one full-page Flash annotation. Inside that is a SWF (usually a whole bunch of them) which contains your actual document, and nothing Acrobat does with PDF compression settings will have any bearing on the contents of embedded SWF files - the only way to do that is to change the quality settings in the original application that's exporting the SWFs.

Save in Pdf reduce file size

Hey Guys,
I'd need some help as i'm totally confused.
My problem: I create a new document in Photoshop with 1200x600px 300dpi dimensions. After editing I want to save in PDF format with the same dimensions. But. The final PDF file is totally small around 288x129. I tried every single options to change in the save dialogue without any success. If i open the document with 72dpi then the final image size will be perfect. But i need 300dpi.
Any idea?
Thanks

First of all thx for your time. So i went back to basics to check this out. I create a blank document with these settings:
For simplicity i just save this blank white page as pdf with the following settings:
And after that i get a 288x144 px pdf file. The image dimensions look like this in ps:

Compress pdf/reduce file size

I have both Acrobat 9 pro extended & 10 X pro, when i use the 9 version to compress a pdf file(using optimized scan pdf), i find it very powerful & the file becomes extremely small, but when i use the same option in 10 X pro, the file becomes bigger actually. any clue? & what's the best way the compress pdf files in Acrobat 10 X pro?

I have both Acrobat 9 pro extended & 10 X pro, when i use the 9 version to compress a pdf file(using optimized scan pdf), i find it very powerful & the file becomes extremely small, but when i use the same option in 10 X pro, the file becomes bigger actually. any clue? & what's the best way the compress pdf files in Acrobat 10 X pro?

How to set option in Scanning for Reduced File Size

I am scanning from a Fujitsu 6230 scanner in Adobe Acrobat Standard 9.4.1. My scanning options are Color, 300DPI,Letter, High Quality, with Optimization options of Custom Settings of JPEG for Color/Grayscale. The scanned files are very large...1852KB per page. After using the Reduce File Size option and selecting Acrobat 8 and later, the file size is reduced to 187K. Is there a way to preset the Acrobat 8 or later setting....rather than having to do the two-step?
Also, if I use Fujitsu's scanning interface I get far higher quality pdf's, with small file sizes, and lower scanning resolution......but without the option to append to a pdf, an option I use frequently. Apparently their program for converting the scanned image to a pdf is more robust than Adobe's. Is there a way to use their image->pdf engine within Acrobat?

Hi Boatseller,
I will put this in simple way.
Can we set properties in biztalk wcf_custom adaptor like
1. <security authenticationMode="UserNameOverTransport"
2. enableUnsecuredResponse="True"
or
includeTimestamp="false"
3. <textMessageEncoding
messageVersion="Soap11"/>
<httpsTransport/>
I am unable to find these properties in BizTalk wcf_custom adaptor properties. It will be great help if you could guide me in right direction . My problem is to receive response message into orchestration which is not having header. But the response is coming
from web service. I saw that in fiddler.
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When converting a .pptx file of 6MB to .pdf, the file size ballooned to 25MB. The original file was created on a PC. What happened? Why? How to fix? Thx.

When converting a .pptx file of 6MB to .pdf, the file size ballooned to 25MB. The original file was created on a PC. What happened? Why? How to fix? Thx.

gssharpe wrote:
What happened?
Nothing much. Different formats.
How to fix?
Try editing the original file. Resample pics to a lower resolution, check out other graphics, check table borders (eliminate any dotted lines or borders), check font usage. When generating PDF, try Save As (instead of Print > Save As), although I don't expect that'll make much difference.
Next, open the PDF in Preview, choose File > Save As, choose Format: PDF, Quartz Filterz: Reduce File Size. If that isn't enough, you can use ColorSync Utility to duplicate the Reduce File Size filter, and then edit it for a more aggressive size reduction. But keep in mind that size reduction means lower quality.

Optimize/Reduce File Size

I'm working with a PDF that I did not create but have been asked to try to reduce the size of. It was created in InDesign CS4 (don't know if it was Mac or Windows). It is a large book (600 pages) but entirely text, other than one graphic on the cover. A similar book that I had worked on produced a PDF of about 2.8 MB. The one in question is over 6MB. Using the Reduce File Size command and using the Optimizer both increase the file size.
Auditing the space usage shows that 86% of the space is "Structure Info." I believe the InDesign file was done by someone not very versed in the ways of InDesign, and that there were many places where text was threaded in strange ways, with lots of overlapping text boxes. I don't know if that would have anything to do with the "structure info" in the PDF. "Structure Info" isn't even listed in the audit results of the normal PDFs I'm comparing this one to. The InDesign file was actually several InDesign files, and I don't know how the PDFs of the individual files were combined, but that's another piece of information.
Given the above facts and the little I know about how the PDF was really exported and assembled, does anyone have any ideas about actually making the file smaller? Based on the other PDFs we've done of simlilar books, it should be somewhere around 2.5 to 3MB in size, not the 6 to 8 it currently is.

Auditing the space usage shows that 86% of the space is "Structure Info."
It would appear that the PDF is a Tagged output PDF.
As discussed in ISO 32000-1, Tagged PDF facilitates content use/consumption by:
--| users of AT for Accessibility
--| users of mobile devices (reflow)
--| content export with format/layout information
--| simple copy/paste
If the PDF is, in fact, a well-formed Tagged PDF then the author actually has commendable competency with InDesign.
Oh yes, using Acrobat Pro you can use either Optimizer or a Preflight to remove all structure. This would help reduce the PDF's size.
Be well...
Message was edited by: CtDave

PDF CMYK TIF Color Changes on "Reduce File Size"

I run a Mac G4 MDD w/1GB Memory and OSX 10.4.11. Use Acrobat Pro 8.1.2 for PDF viewing, manipulation, forms, making large size files smaller, etc. Recently, I noticed an odd color change on one of 72 ads I am doing for a small 24-page publication. The background image of the ad is a CMYK TIF file placed in a QXP 7.3.1 document. After working on a revision to a previous ad, using the same set-up in QXP, the ad I created, using Output to PDF, opened in AcroPro correctly rendering the ad and background as the other 31 ads I had been working from or on. All the ads are different and have different backgrounds as well. Each ad opened in AcroPro has been made smaller by selecting "Reduce File Size" with no changes to color, drop shadows or text. But, when I selected that (RFS) menu for the 32nd ad, that background color changed completely to a lighter and much more contrasty image. I checked the TIFF background file in PS CS2 to see if it was CMYK or any different than the others. It was like the others, properly rendered and saved, but was much deeper in color. I went back into QXP and noticed the TIFF file in question had a 30% opacity selected to the image. I thought if I saved the original TIFF in PS with a screen tint overtop and flattened to the same look as the intended ad that would solve my problem. I placed that new TIFF background into the ad in QXP and made sure the opacity was 100% and output PDF as I had previously. Unfortunately, the ad turned out exactly the same with the same color shift. There must be something else causing this color change to occur, so if someone else has experienced this and can suggest an answer or posting that may help please advise. Thanks

Cathy,
You have posted your question in a forum dedicated to the Final Cut Studio application Color. It is a very specialized program to grade (adjust) the color in video/film images. We know nothing regarding PDFs.
Have you tried posting this on an Adobe support site?
Good luck,
x

I have to zip pdf files to email them to someone with a PC. The problem is they aren't smaller after zipping and I can't email them. I tried adjusting the Quartz filter to the Reduce file size. Now they're smaller, but the recipient can't read them. Help!

I need to zip pdf files to email them to a PC user. The problem is file size is not reduced.
I tried zipping them in Win 7 (which I use via Parallels 7) and sending them to the Finder to email.
But lately nothing is reduced. I tried choosing the Reduce File Size option in the Quartz Filter when I save the doc. The file size was reduced. However, the recipient could not read the file. Everything was blurry.
Is there a solution?

I am having some PDF sizing issues also, I am a BETA tester for TurboCAD Mac, and with the usage of (public) version 5, I have had some scaling issues. I have had (auto sent) 15 plus crash reports, (available as text) and had posted my scenario within the "lion- problems so far" article, so not to use up extra bandwith- or whatever- there are pictures there. I was not able to upload a PDF on site, and the staff @ Turbo CAd is working on it also. this is Lion specific new update, as I have posted many large format PDF's
Here (edit to add url)
Thanks for the helps!
Johnny

Reduce File Size and Optimise PDF both increase file size

Hi All
I have exported a pdf (our college mag) at smallest file size from Indesign CS4 for online use. The problem is the resultant file size is a little under 19Mb. Using both or either Reduce File Size or Optimise functions simply result in an increase to 22Mb. The document is packed with images however I would have thought one or both of these processes would have helped reduce the file size to a more manageable download file size.
A pdf is also produced to go to print so simply compressing all images prior to imcuding them in Indesign is not a preferable option - this would mean creating two separate Indesign documents, something which I would rather avoid if possible.
Any help would be greatly appreciated as always.
The file reside here if anyone cares to take a look http://www.ayrcoll.ac.uk/index.php?name=UpDownload&req=viewdownload&cid=11&orderby=dateD It's the latest release (September 09)
Thanks
Colin

You might want to do an audit of the PDF (button in PDF Optimizer) and try to figure out what the various parts are. It shows 58% is content streams (sorry, but I am not sure what that is), 26% is overhead, and only 12.7% is graphics. Since you are not storing bookmarks and such, you might want to try going back to ID and printing to the Adobe PDF printer for a comparison. It may be one technique is more efficient than the other.
When I used the optimizer, the file did get larger. When I used Reduce File Size, it got slightly smaller. The key may be in figuring out what the various parts are from the audit. You might try copying one page of ID to a new document and play with various versions - different fonts (all were embedded and that is probably best), variations on graphics, etc. That is all I can suggest since I would simply be playing with different ways to produce the document and looking at what is causing the bloat. When the Images are only 12.7% and the fonts less than 1%, there is something going on to produce the size, and those 2 are typically the killers. I would mention tags that tend to bloat, but you do not have any (normally used for assessibility).
You might want to try some of the preflight checks to find issues. I did the transparency check and got 170 instances in 22 pages. Flattening the page may help. There were some pages that seemed to be very bad. However, I did not get a big file size reduction. I did not get a lot of improvement by printing to a new PDF either. Certain pages seem to be part of the bloat problem. The print took a long time around pages 11 and 22.
One troubleshooting technique would be extract pages to separate files and look at the details of each page to see what is causing the issue.
Need to go. Good luck.

I use Adobe Acrobat Pro XI (11.0.08) When performing "Save as" "Reduced file size pdf" Adobe processes for a while then completely stops, and has to close down. Just started doing that today.

I use Adobe Acrobat Pro XI (11.0.08) When performing "Save as" "Reduced file size pdf" Adobe processes for a while then completely stops, and has to close down. Just started doing that today.

I have Windows 8.1, and when I right click on the Windows flag (bottom left), the menu gives me a "Search" option. When I enter "%temp%", it goes to " "my username"/ appdata/temp" which is a list of file 1718 file folders. Many are empty but I did a small sample. Is that the right place to delete? I tried Windows- Disk Clean, but that did not help.

Adobe Acrobat Pro XI 11.0.06 when I reduce file size or try to optimize, I get this error: The document could not be saved. A number is out of range. I do the exact same thing every month and it works. I did it a few days ago and it worked. I receated the

Adobe Acrobat Pro XI 11.0.06 when I reduce file size or try to optimize, I get this error: The document could not be saved. A number is out of range. I do the exact same thing every month and it works. I did it a few days ago and it worked. I receated the pdf, I renamed it. tried to do it before I imported more pages. no go. the 16 mg pdf will normally reduce to 5 or 6

Hi,
Are you facing the issue with any pdf file?
Please try updating Acrobat to 11.0.7 and check.
You might also want to repair Acrobat and see.
Regards,
Rave

PDF reduce file size filters and CMYK to RGB conversion

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