Reduce file size makes documents much larger.

In my new Acrobat 10.1.6, "reduce file size" and "optimize" keep making the document much, much larger. Reduce file size even took a document previously at 3.3 mb and turned it into 24 mb. So I took the same document and went back to my previous Acrobat 5, and it actually reduced the file size as expected. What's going on?

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!

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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!

Why does Acrobat X Reduce File Size make significantly bigger files?

Drawings at AO size, probably from AutoCad, each pdf ranging in size from 600 to 800kb. No encription. No attachments. No embedded fonts. Reprinted them through Acrobat X Pro to A3 then combined them. Binder size was about 5MB, too large for my client's email system.
Ran the binder through Reduce File size with compatibilty to Version 7 and the binder blew out in size by 20%. Increased the version compatibility to Version 8 and it increased yet again, to Version 9 stayed the same as 8.
Optimised the same binder and it blew out yet again. Auditing showed no difference no matter what i deleted.

If you have a file made from AutoCAD it is probably just line drawing. There is really no scope to reduce the size of these (except by taking away lines, which wouldn't be popular). I don't know why it gets bigger, but it's unlikely to get smaller, so I'd recommend finding a different way to deliver the file (many web sites exist for delivering large files).

HT4114 Reduce file size when projecting onto large screen?

Hi,
Does "Reduce File Size" reduce the quality of an image or video that is being projected from my iPad 3 onto a 10ft screen via VGA adaptor? I'm teaching a film class, and multiple film clips and stills seem to cause Keynote to grind to a near halt. We can't really get the room adequately dark, so I really don't want to reduce image quality any further.
Thanks in advance for any help suggestions!
Gretchen

virtual.gretchen wrote:
Does "Reduce File Size" reduce the quality of an image or video...
Gretchen ~ I don't know the answer, but can say that I know of only one process that reduces file size without reducing image quality. Perhaps others will chip in here with more suggestions...
The free "JPEGmini" reduces the file size of JPEG images without reducing their dimensions or perceivable quality. The Web version allows you to upload and downsize one image at a time. The Mac App version avoids uploading and allows you to downsize up to 20 images per day for free.

Reducing file size produces a larger file (?)

I have a 3.8mb pdf (created in Acrobat 9) that I'd like to reduce in size. It's text only (about 450 pages) and when I select "Reduce file size" Acrobat X goes through steps to optimize it for the web, and it comes out 5.1 mb. Not really much of a reduction in size if it's now a meg and a half larger than the original. Is there a better way to do this that I'm missing here?

There are many things that could cause the issues. Under the Optimize option (or wherever it went in AAX) there is an audit function that allows you to see where the storage is going. You could compare before and after optimization to see what was happening. You say 450 pages is not much, but that all depends on what is there. If it is a lot of graphics, it could be huge. If you use a lot of different fonts, that can cause extra storage of all those fonts. So there are many variables and sometimes they do get bigger -- happened to me too. Unfortunately, when you are trying to make things smaller, you are often under the gun and don't have time to diddle around. Good luck.

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!

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

How to reduce file size of pdf documents from 12 mb to 4 mb

i am trying to reduce file size at adobe reader original document size is 12 mb i need to get it down to 4 mb , please help how

You might be asking for the impossible or the easy. Acrobat Pro can reduce the size of PDF files, but nobody can promise any particular PDF can shrink.

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)

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

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 - File smallest with Acrobat 4.0/5.0 compatibility

This is with Acrobat 8.
Contrary to the information on the Reduce File Size dialog which says, Setting Compatibility to later versions of Acrobat will allow greater reduction in file size, I have a number of PDF files which gain the most reduction in size when set to Acrobat 4 and later.
Here is the various sizes by Acrobat revision chosen for one of the documents:
Make Compatible With
File Size
Retain Existing
79,202,311
Acrobat 4.0 and later
19,884,757
Acrobat 5.0 and later
19,884,773
Acrobat 6.0 and later
27,611,913
Acrobat 7.0 and later
27,611,909
Acrobat 8.0 and later
27,611,920
After the conversion when the file is reopened in Acrobat the file appears the same visually.
So the question is, am I losing any content by choosing the reduction to the smaller file size of Acrobat 4.0/5.0?
As I have a large number of these files the additional space saving would be good but not at the loss of significant information.
Thanks,
Jay

You will lose any information that is not compatible with AA4 or AA5. It may be that the information is not needed and so there is no visual difference.

Undo reduce file size

Worked up documents on Pages with multiple photos, some at high resolutions. Reduced file size for emailing and sending to dropbox and now want to print in an 18" x 24" size. Sample print is very blurrry How do I undo reduce file size? Would exporting file via pdf (best file quality) help? Any other suggestions. Much aprreciated.

Hi Trudy,
Reducing file size works by reducing the file size of any high resolution images to 72 dpi, OK for on screen use, but quite pixelated if printed or enlarged. Here's an example:
Here's the original—This is a detail, enlarged to 400% on the screen, but reduced by the discussions software to fit on this page. Note the spider web below the frog.
Here's the warning you get when you choose Reduce File Size:
Note that it says it "replaces" the original versions of the images. Scarey thought, but not as permanent as it appears.
Here's the result:
The frog's snout is quite pixillated, and the web has almost disappeared, as has much of the texture of the frog's skin and of the rough-sawn cedar siding behind. Again, a 400% enlargement on the screen, with the reduction imposed by the discussions software.
If you act at this point, it is possible to undo the change—throwing out the edited image and replacing it with the original version. The option appears to remain available even after the document is Saved, but disappears when it has been Closed. That would make sense, as Saving both the reduced image and the full version would not result in a reduction in file size.
But there's one other factor: When you drop an image onto a placeholder in Pages, the image that is inserted is a COPY of the original image file. The editing referred to above is done with that copy, not with the original image file, which continues to exist, unchanged where it was before being inserted.
To get the hi-res version back, then is a matter of dropping the original file onto the placeholder again.
Seems to work.
Regards,
Barry

Reducing File Size in Pages

I have a book I have written in Pages. It has lots of photos. When I make a pdf, it's about 380 Megs and is larger still in the pages format--nearly 500 megs.
The publishing company online has a maximum size limit of 400 megs for the pdf file. The book is in Spanish, but I'm making a bilingual version which will double the size. Obviously that will be too big in the end.
I've used the Pages reduce file size feature but while it reduces it WAY down, the photos inside are kind of blurry.
Is there a way to reduce LESS? It's all for nothing and your pages file goes from 500 or so to 11 or so megs.
Can I reduce the file's size but not so much?
Thanks,
Tom in Arizona

1. Make a schedule of the image sizes from the Graphic inspector. Use TextEdit or the like. Alternatively hand write it on a print out or as a Text box label over.
2. Gather up your images in an Images folder. Helps if you dupe and tag the images according to Fig No. or page number at the beginning of the file name (so they fall in order).
3. Work your way systematically through the images:
     a. Trim the image as it appears in Pages
     b. Change its resolution to 300dpi at size (for commercial printing)
          DO NOT SCALE UP.
     c. Color Correct and add sharpening as needed
4. Make a duplicate of the file (for safety) and drag back the edited images into their locations. Hopefully you have made the images placeholders.
5. Use this .pages file to print from if your Printer will accept it, otherwise Print to .pdf so it maintains its resolution.
7. If keeping the file size down is important, Use Pages '09 not Pages 5 and use as much vector artwork/font artwork as possible in place of bitmap photos.
Thinking ahead and being systematic pays off on any large project.
Peter

Reduce File Size --- one symbol gone

For a couple of years, I have routinely done "reduce file size" (compatible with version 6) on a large document that I maintain and share. The original document, made from pdfLaTeX, via Scientific Word, is about 11 Meg. It used to reduce to about 3 Meg, no problem.
Recently changing to a new computer and newer version of Acrobat, 9, has broken this process, changing every minus sign in the document into a box. Otherwise it looks fine.
This has been driving me crazy all day, messing around upgrading from Standard to Pro and trying different options. As far as I can tell, the original document has embedded fonts, as does the shrunken one.
I'll attach the reduced file with the missing minus signs. Look at the 16th page, for example, equations 2.2 and 2.3 should have leading minus signs on the right sides.
Thank you,

To make the process easier, could you extract the single page in the original and in the RFS version, posting them both. I was not able to view the properties of the "-" sign, but I was able to view it by copying it to the clipboard. The result of the copy is shown in the GIF file below (I hope). It is actually not a true minus sign.
Just for your info, I am looking at AA7 with the AA7 view as
So the minus sign is there, just not displaying correctly. The fonts show to all be embedded (LaTeX fonts). However, it looks like some of this is being reported incorrectly. I selected the text touchup tool, selected the "box", and viewed the properties. It was a cmsy10 font that was checked as embedded subset, but to the left it said "Permissions: Cannot embed font." The font list shows two sets of these fonts.
The other fonts in the equation displayed fine, but the permissions message again came up. I am not sure why there are 2 fonts listed with the same name (several more also) and the apparent conflict in the embed check and the Permissions. Anyway, I think this is directly related to the issue at hand and is the place to be looking for a solution. Again, posting part of the original would be very helpful.

Reduce file size makes documents much larger.

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