Reduce File Size/Optimize ruins JPG quality

I create a lot of PDF maps with aerial imagery background. These files are often large in file size and I usually run the Reduce File Size to reduce size by 80-90%. I also include my company's logo (JPG) on these maps. However, after running the Reduce File Size, the JPG looks blotchy and watercolored, and the crisp quality has been completely lost. The aerial image, however, does not lose any quality. I've gone through the Optimize PDF tools and it appears the only thing I can do is to not downsample the JPG, but then my file size is only reduced maybe 25%. Is there a way to designate what images in the PDF you want to be resampled?

Assuming your logo is colored, no. Optimize runs globally on all images, so the only way to limit it's effect is if the image you want to omit is grayscale or mono, and the images to compress are all color.
The logical solution is not to add the logo beforehand. Optimize your PDF with just the map in, then add your logo as a new layer, and (optionally) flatten it.

Similar Messages

How do you reduce file size of a PDF if Save As doesnt work?

I have been trying to reduce the size of a PDF, using the Save As > Optimized PDF method.
I have also tried Save As > Reduced Size PDF.
This is on a file made up of 20 pages of full page Jpegs. (These were generated by the script in Photoshop that generates Jpeg files from Layer Comps within the document.)
If I use Reduced Size PDF, I get a greatly reduced file size but the image quality suffers greatly. (Lots of artifacts and blurryness)
There are no options to choose the level of compression I want.
If I use Optimized PDF method, I cant seem to reduce the file size no matter what I set the Jpeg compression to.
Is there some way to cut the size of the file down but not lose so much image quality?
Any suggestions?

Part of the problem here is that the files that are produced when I run the script to output files from layer comps are very big.
If I "save for web" for each layer comp, I wind up with way smaller Jpegs. Thus a much smaller PDF.
So the question is: Can you make the script, Layer Comps to Files, create smaller more optimized Jpegs? (Like you get when you save for web)

Reducing file size #2...Preview, Quartz Filter vs Adobe Pro Optimize

Questions on reducing a pages to pdf file…I will post each question seperatly.
2) I read that you can reduce file size of a pdf in preview with a quartz filter. I created my own filer and it worked as expected. But, I also have Adobe Acrobat Pro, with save as PDF Optimized. The pro seems to have much more capability than the quartz filters.
Is one better that the other to use? The adobe optimize (standard settings) took it from 20 to 6 megs.
THanks, Bob

The Adobe Acrobat settings you chose are probably using .jpeg to reduce the file size.
.jpegs are lossy. ie You lose detail and sharpness the more you compress the image.
The Quartz filters are usually of very high quality, but they are a black box and you need to understand what the settings are in each one. Quartz filters are extremely powerful, fast and as I said usually high quality but I suggest you experiment and see if they meet your needs.
Peter

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

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

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
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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.
Also, If there is any steps to make these properties available in machine config, please share
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Issues in Reducing file size on Acrobat 9.3.1

The text has been merged or split on Acrobat 9.3.1 Pro by using the option "Reduce File Size" or "PDF Optimizer". There is no issue in the earlier version of Acrobat (7.0 & 8.0). We are using the Mac OS between 10.4.11 to 10.6.2. I have attached screenshots for your reference; please look at the Word "Issues" has been split after reducing file size on Acrobat 9.3.1. Is there any other way to do Hi-Res PDF to Low-Res PDF without any issue? Kindly help me out to sustain the best process in future.

I found a similar problem with text styled for small caps. It was fine in the original PDF, but became lowercase in the reduced file. The reduction process probably throws away characters from fonts that Acrobat decides are unnecessary.
I was able to partially solve the problem by combining multiple PDFs (book chapters) and selecting the smallest file size icon at the bottom of the page. Alternately, I chose a web-quality preset, which also worked. The file size might not be quite as small, but the files were good.

What do I loose with "Reduce File Size" to Acrobat 8.0 compatability?

When scanning documents using the Acrobat interface in 9.0, I find that the file sizes are very large...about 1.5MB per page. If I then select the "reduce File Size" option from the Document tab, and select Acrobat 8.0 and later compatibility, the file size is reduced by 10 fold....to something approaching 150 KB per page. I don't see degradation of the scanned image on my screen....but am I loosing image quality?

I tried it at home & I used the optimize pdf thing. It went from 17MB to 12MB so I re-optimized it & got it down to 3MB. It's as good as it is going to get. The big problem is that the .pdf that I have was scanned on a copier machine.
I printed the 3MB pdf on the color printer & it came out okay, but then I printed it on the black & white printer & it barely had any ink on the page....
I am just going to not bother with it anymore. Not much I can do with a scanned document & it's not even my job to begin with!
Thanks Bill.
Jules

Reduce file size w/o blurring up my images?

I have a Pages (iWork '09) document with a lot of images (screenshots) in it. Many of these are large shots where I've used the mask option to hide what I don't need. The file is pretty large, even when I export it to PDF. Using the Reduce File Size option turns my screenshots into a blurry mess. Is there are way to get rid of the cropped areas w/o mucking with the image resolutions? Most of the pics were screenshots from Evernote dropped into the Pages file.
Short of that, will exporting to PDF and using Adobe Acrobat Pro's file optimization do the trick w/o blurring things up too badly?

Thanks for that. I was hoping I had independent control of cropping. I'll just have to do the cropping manually and rely on masking for trimming out little bits of things. I'm coming to Pages after years with Word, which allows more control when it comes to dumbing down images. I really like composing things in Pages. Now I just have to learn the best ways to get quality output w/o huge file sizes.
Thanks,
Wheat

Reduce file size with action wizard

(German version below)
Hey,
I got two questions for action wizard in Acrobat XI Pro.
I try to reduze file size of many PDFs using acion wizard. My tests worked fine but now I got some problems I try to explain now:
1. I add a directory with many subdirectorys to my process list. Adobe now adds not only PDFs to my list, it also adds JPGs, DOCs etc. That means I have to delete every single file I not want to convert to PDF cause I only want to reduce file size of excisting PDFs. Is there any possibility to only add PDFs in my processing list?
2. If a PDF is opend by any other user I get a information about it. This info I need to acknowledge every time it pops up cause my process interrups. Is there any possibility to ignore this info?
I´m happy for any help i can get here. Thx.
Regards
(Sorry for bad english, it´s not my favorite language )
Hallo Leute,
ich benötige Hilfe beim Benutzen des Aktionsassistenten im Acrobat XI Pro.
Ich versuche bei sehr vielen PDFs die Dateigröße zu verringern. Dazu habe ich mir eine Stapelverarbeitung per Aktionsassistent erstellt die bei meiner Testumgebung auch super funktioniert. Leider habe ich noch einige Probleme für die ich Hilfe benötige:
1. Wenn ich einen Ordner mit sehr vielen Unterordnern und verschiedenen Inhalten einfüge möchte ich eigentlich nur die PDFs verarbeiten. Leider fügt Acrobat auch alle JPGs DOCs etc. hinzu. Ich muss also alle unerwünschten Dokumente herausfiltern, da auch keine sortierung vorhanden ist. Bei mehreren Tausend Dokumenten nicht leistbar. Gibt es hier eine Möglichkeit nur PDFs in die Stapelverabeitung aufzunehmen?
2. Sollte die Verarbeitung mal laufen kommt es hin und wieder vor das die PDFs durch einen Benutzer geöffnet sind. Ich bekommen hier eine Meldung von Acrobat die ich erst bestätigen muss bevor es weiter geht. Da das Programm eigentlich über mehrer Tage/Wochen im Hintergrund laufen soll passt mir das gar nicht wenn ich alle Stunde überprüfen muss ob die Stapelverabeitung noch läuft.
Ich hoffe es gibt jemanden der mir helfen kann. Ich bin über jede hilfreiche Antwort glücklich.
Gruß

For starters, let's refer to your original post: "this is indeed a serious problem and step back in functionality..." This statement is a quite ridiculous assertion, unnecessarily dramatic, wholly inaccurate, and unhelpful. Your statement "is this a joke" and "I know Acrobat tends to choke...etc..." is just pure gibberish and polemical. It is quite easy to feed any application enough data to cause a performance failure, but one would really need to question one's motive and prudent use of one's time at this point - unless you are tasked with stress and load testing the software to determine minimum working requirements.
'Batch Processing' is, since Acrobat 9.x, dead and gone, Acrobat 11's approach is to aggregate many hitherto unavailable tools and commands and allow the user to create custom workflows. More interactivity has been built into the process, which may or may not be desirable in each case depending on the workflow context and requirements. But we have obviously moved away from the concept of processing a large number of files and towards a more targeted and effective processing of smaller sets of files. The default Actions we deliver with Acrobat 11 reflect this intention.
The feature "Batch Processing", which was an Acrobat feature from A5 (I believe) up to A9, previously had been hidden in Menu/Advanced/Document Processing/Batch Processing has been wholly replaced by a completely overhauled framework called Actions, now part of the Tools panel, and will be immediately accessible when Tools is called in the UI.
Thus the obscured Batch Processing may have been a tool considered and used by an extremely small set of users to do exactly that, i.e., batch process a large number of files, but had been fairly inflexible, generally speaking, and buggy. We were very well aware that if we were to overhaul the feature, add a considerably larger number of available tools and commands in Acrobat, provide wide possibilities for customization built towards specific workflows, and bring it to the forefront, we were going to sacrifice some of the aspects of batch processing a large number of files. Not calling it "Batch Processing" anymore - because it isn't - may be an indication of this intention.
Personally I have used and tested Batch Processing periodically during various Acrobat projects, but I don't remember encountering the "Reduce File Size" command - which is a subset of Save and file optimization - to use within a batch sequence. I may be wrong, and your screen shots would be welcome here. In fact go ahead and construct a batch sequence that (1) uses 'Reduce File Size and (2) applies file type filters to it, and post it either here or to me privately. I would be happy to be wrong. But regardless, we are grateful for positive input that points out defects, allows us to improve the functionality of the product, providing the intended changes are reasonable, and that the communication of said issues remain respectful of this process and of the individuals we depend upon to implement these changes. The tone of your response comes very close to rendering a proper consideration of this issue irrelevant.

Reduce File Size doesn't work!

When I click the (new) option 'Reduce File Size' in Keynote '09 the app prompts a estimated new size which is smaller than the current size. When I click on 'Reduce' the app doesn't do anything except for showing an error report which tells me something like: "..the file size was not reduced", for all of the files included. They are just regular .jpg/.png and .psd files. Did anyone else notice this bug..?

PeterBreis0807 wrote:
I'd say if it is a very large file with multiple large images, it might not be actually freezing, just taking its sweet time.
It's why I leave Activity Monitor running when I use iWork applications.
This way, I know ifd the app is dead or if it's heavily busy.
Either that or it has nothing to do. It trims and reduces the resolution of bitmap images to 72dpi. There will be a fair bit of work if you have transparency in the document.
It doesn't do a very good job IMHO and to reduce the file by 90% is a big ask.
The 'Reduce FileSize' feature isn't linked to the 'export to PDF' feature.
As explained, before applying "Reduce file size" it's good practice to "Reduce Image File Size".
This will drop the parts of the pictures which aren't displayed.
The asked task doesn't imply a reduction of the pictures by 90%.
As I already wrote several times, it's more efficient to crop images to the really used area *_before inserting them in a Pages document_*.
A Pages document is huge by nature because the Index.xml file describing its contents is highly verbose.
If the document was saved with the 'embed Preview.pdf' feature active, the size of this PDF is adding a lot of used space.
I'd print to pdf and reduce the quality in Acrobat Pro.
Most of us don't own Acrobat Pro.
I feel that it would be a bit silly to buy an application whose price is : 450$ as a complement for a 80$ set of applications.
Before doing that, I would
(a) crop pictures before inserting them
(b) try to enhance Pages behaviour for free installing enhanced PDF filters.
Yvan KOENIG (VALLAURIS, France) dimanche 29 août 2010 09:53:44

Ways of reducing file size??

Hello,
I have a 3D animation that is rendered to bmp frames.
I have inserted the animations into a Flash doc.
After editing, my final Flash movie/file is 20MB.
what are the best ways of reducing or compressing the file size down to a resonable "web-ready" level? Around 8MB or lower?
I want to avoid lowering the quality from 75%.
Please advise, thanks!
D_xyz

The primary way to reduce file size is to reduce the size of the imported content that the file is holding, meaning images and sound elements. The ways to reduce the size of those things is to either optimize them before bringing them into the Flash file, or loading them dynamically so that they are not part of the published file's weight.
In your Flash Publish Settings you can select the option to "Generate Size Report" HAving that report you can see the contributions of each piece to the overall file size, and in turn focus on them to try to bring the size of the file down.

How to reduce file size when using batch processing?

I use File > Process Multiple Files to batch process photos to a smaller file size along with adding my watermark. I've played with many different settings and no matter what I choose, I can't get my average file size to be less than about 200k. However, when I've exported the same photos using iPhoto, I can get the file size to about half of that with no difference (to my naked eye at least) in quality.
I definitely want to keep the height at 768 pixels so that needs to stay constant.
My current settings in batch processing (average file size = 200 kb)
Resize images with a height constraint of 768 pixels at 150dpi
What I've tried:
Resize at 72dpi (reduced file size by about 5kb)
convert file to JPEG low quality (reduced file size by about 10kb)
convert file to JPEG medium quality (not much difference in file size)
I'm using PSE 10 on a Mac running Lion.
Thank you in advance for your help!

You should go with default settings of Optimizer.
One difference between default settings of Optimizer and Reduce file size is that Optimizer does not guarantee a reduction in file size (if your Optimizer settings lead to an increase in file size, that's what you will get).
With Acrobat 9, the default setting in Optimizer has an additional setting which would not do an image optimization that results in increase of file size. In that sense it would in most cases give a smaller file.

Reduce file size for posting

I am trying to upload some photos to eBay. The original file size ris under 5Mb in Aperture but eBay claims it's too large at over 9Mb (the max apparently is 7Mb).
Rather than bang my head again the wall arguing I'd like to reduce the file size even more to say 2Mb in Aperture but have no idea how to do this. Would changing the pixel vertical and horizontal count be an easier way?
I also have no idea how to do that despite searching Help yet again to no avail. I tried reduce photos, reduce file size, reduce pixels... nothing relevant came up.
Sorry for being such a clutz but I never seem to get anthing from help but you guys always come up with the goods.

You can look at the exported files in the Finder to see the size the size and you can tell if it really is to big or if something else is going on.
So how did you export the images you tried to upload already? What settings did you use? There are a few different ways to control file size and which to use depends on how you plan on using the images.
Assuming you're exporting as JPG you can drop the quality slider down that will definitely bring the file size down but again without knowing how you exported how much over the file really is and how you plan on using them it's difficult to get more specific.
regards

Reduce File Size in Acrobat Pro (9.5.5) Corrupts Graphics in PDF Documents - shows up as black image

Whenever I use Reduce File Size in Acrobat Pro (9.5.5), sometimes some of the images (not all) get corrupted and show up as a black image in the new document.
Actually, the new reduced document looks okay when viewed in Acrobat, but the problem shows up when viewed in the Preview application on the Mac.
I'm using Acrobat 9.5.5 with Mac OS 10.8.6
I've tried re-importing the graphic into a new graphic box, which didn't work. Thinking there may be some type of corruption with the actual graphic file, I then tried viewing the graphic, then taking a screenshot of it to create a completely new file, and then re-importing the new graphic file into the original document (created in Adobe In Design 5.0.4). I then export the new document as a pdf, and brought it into Acrobat Pro to do the Reduce File Size. Same thing happens - black box appears where the graphic was.
I then tried using the Reduce File Size within the Save As function of the Preview application on the Mac - while the graphic remains intact, many of the other graphics in the document are "reduced" too much, to the point where the image quality is seriously degraded, and therefore not usable.
Any other ideas?

Hi Anoop,
I can share the graphic file, but not the pdf which contains it (as it contains confidential information) - thanks!

Reduce File Size/Optimize ruins JPG quality

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