File sizes explodes after removing hidden information

After removing hidden content in Acrobat Pro X (Tools/remove hidden content or Tools/sanitize) the file size increases, up to 10x (2 MB -> 20 MB). Save as optimized PDF only partly reduces the problem, file is still 3-4x the initial size. Document was created with Adobe PDF writer, but this problem occurs in principle also with other PDFs. Bug? Necessary? Workaround? Any help is appreciated. Thanks in advance!

Any one found a solution to this problem?
I'm having it too, acrobat xi pro 11.0.10...
Original file size before cropping ~27MB
Same file saved as optimized PDF before cropping ~12MB
Original file size after cropping ~27MB
Same file saved as optimized PDF after cropping ~12MB
Original file saved as some other file name after removing hidden information ~60MB
Same file saved as optimized PDF after cropping AND after removing hidden information ~60MB
What on earth is going on?

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"Remove Hidden Information" not functioning properly after crop

Hello all,
I often print multi-page MS Visio documents to PDF, then edit them in Acrobat Pro XI. I have found that since the most recent update of Acrobat Pro XI, when I crop a page, then select "remove hidden information," it only removes text information, and not all the information that is cropped. For example, if I have a box filled with text that is partially cropped, and I select "remove hidden information," the portion of the text that is cropped is removed, but the entire graphical portion of the box remains and can be seen if the file is "uncropped." Is there a solution for this problem? It seems like it should be easy to remove all the previously-visible data that has been cropped, and in the past, I have been able to do so, but I can't seem to any longer.
Thanks in advance.

I wouldn't expect it to remove part of a graphic in general. I haven't compared results.

BUG - remove hidden information - Acrobat remove some visible/live text (in all Acrobat versions)!!!

hello
I need to check many pdf for hidden/clipped text and remove them. Acrobat can find this BUT have bug.
Acrobat mark some live visible text and this is problem if you click "remove" button.
Here is evidence (6):

It was strange in my copy of DC, but I selected the Redact tool and then remove hidden information. I highlighted the hidden info in both files, but then backed out, not doing the remove. When I tried again, the remove hidden tool was blocked. When I actually did the removal, those items were missing as you mentioned. I am not sure why they were listed as hidden since they were indeed visible. I am not really helping answer the problem, but confirming your results.
Also, if you select remove hidden information when closing the document, you lose these fonts characters just as when using the Redact tool. I would agree that this is indeed an issue for a bug report. An earlier post provided the bug report link and I would suggest using it.

Remove Hidden Information

Hi! I am using Adobe Reader XI and can't find the QuickTool menu on teh right side of the document. I need it because I want to use the command Remove Hidden Information from a PDF file which keeps on giving me the error code 135 whenever I edit it and try to save it. I tried to save it under a different name but didn't help! I've read in the forum to try using the Remove Hidden Information, but didn't find it Any help will be appreciated.

May be that this function is not available in Adobe Reader.

Remove hidden information without converting to RGB

I'm preparing a PDF for one-color printing, and it has some color data off the page that's messing up our prepress process. So I ran "remove hidden information" to cut that data out, but it converted the entire file from CMYK to RGB. I obviously need the file to stay CMYK (getting it down to just K was the whole point). Is there any way to remove cropped/overlapping data without converting to RGB?

You might try running the Preflight single fixup under Pages to "Remove page objects which are completely outside of page area" instead.

How to disable 'Remove Hidden Information' popup when closing PDF in Acrobat X on Mac?

How do I disable the function that causes the 'Remove Hidden Information' popup when closing PDFs in Acrobat X? I'm using OS X 10.9.4 on a Mac?
I've searched online and was directed to Preferences>>Security (enhanced) to uncheck 'Unable Enhanced Security', but it wasn't checked.
This box (see screen shot) opens each time I close a PDF. I'm forced to select an option before closing.
Please help.
Thanks.

Go to the menu Acrobat>Preferences
In the Preferences window's "Categories" pane, select "Document"
In the "Hidden Information" section deselect both check boxes
Click the OK button
You should be good now.

Preview file size explodes for JSTOR PDFs

I've discovered that when I use PREVIEW to open and then save PDFs downloaded from JSTOR (www.jstor.org), the file size explodes: from 500K to 8 MEGs, for example. This happens only with PREVIEW (though also with PDFPEN), but not with AdobeReader, and it only seems to happen with JSTOR PDFs. Has anyone else noticed this behaviour?

I think I may have figured it out. There is a preference option for "PDF" called "Respect Screen DPI for Scale". If I turn that off, the file size doesn't explode. That may be a new option, or just an option that got switched on in my transition to Leopard.
However... now that it's stopped happening, I can't make it start by switching that preference back on, so that makes me doubt whether it really is the culprit. So long as my file sizes aren't exploding I'm happy, but I would like to understand why it happens.

Remove Hidden Information tool

Hi,
I would have a question regarding Acrobat's 'Remove Hidden Information' tool. Under Tools, Protection there is the 'Remove Hidden Information' tool. When I click it the results can be seen on the left side. Under 'Comments and markups' the sum of objects can be seen. I figured out that it detects bookmarks, links (internal, external) and objects described here: http://help.adobe.com/en_US/acrobat/X/pro/using/WS58a04a822e3e50102bd615109794195ff-7e7f.w .html.
But it also detects some other objects as well which I am not aware of (based on the number of objects detected). I also know that it counts 2 objects when using 'Replace text' from the link above.
Does anybody happen to know what additional types of objects does this tool detects and how to search for them in the document?
Thanks for your help,
Csanad
I use Acrobat version 10.1.5

The hidden text is the collection of glyphs on the PDF page that use text rendering mode 3 (no stroke, no fill).
Any links placed in association with such hidden text are not "hidden" (that is not how it works with PDF Link annotations - see ISO 32000-1:2008).
Any Link annotation placed in a PDF are the same as any other Link annotation (with the exception, of course, of whatever the link's Action happens to be).
So, no special sauce for links that were placed in association with now removed "hidden text".
In context of what you've written it may be that you will have to select - Ctrl+click the Link annotations of interest then tap the Delete key.
Be well...

Stop prompting me to remove hidden information

I would dearly love Acrobat Pro X to sto prompting me to remove hidden information EVERY TIME I try to close a document.
Please advise. Thank you.

Edit > Preferences > Documents > Examine document when closing document

'Remove Hidden Information' Message

Hi,
I've seen this message a couple of times, each when I tried to close my work. That's the message box that has 3 options:
*close without removing info
*remove info but do not close
*remove info then close.
That does that message box and the options mean?
How can I 'see' what 'hidden' informations are??
Hope someone can explain to me.
I'm using Acrobat X.
Thanks,

The ability to remove the cropped areas used to be and option in the Reduce File Size, but it was removed several versions ago. I think it only lasted through the version that introduced Reduce File Size (AA7?). I typically refry such systems as TSN mentioned, but it is not generally a recommended technique. If you do not have any tags or markup, then the refry is fine -- a process that would remove all tags and other markup. It might be possible to put them back with replace pages, but never tried.
I have read the redact bit in another post. I think that will remove the content of the areas, but does not reduce the size of the actual page. It is still cropped as such. I would suggest trying it on a test file and see what happens.

Mailbox size increased after removing attachments

Doing a little clean-up on my mail, I noticed my sent mailbox was 1.23 gigs. So, I went in saved several hundred attachments and then tried to remove attachments. It would only let me remove attachments about 5 messages at a time, so I moved over 300 messages that all had attachments to a new folder. After moving them I was able to remove all the attachments at one time.
But after moving and removing attachments the size of my sent mailbox did not decrease it actually increased by over 400 megs to 1.7 gigs. And the new folder was also very large, at almost 700 megs (even after removing attachments).
Any ideas how/why this happens? and what can I do to reduce the size of that mailbox?
I have had the overflow issue before and have been trying to keep and eye on the mailbox sizes and keep them under 1 gig, but this one got by me. My only complaint is mail does not tell you the size of a mailbox in the application, if I was able to check the mailbox size right from the app it would be an easier thing to keep an eye on an everyday basis.
Any help would be great.. thanks!
G4 400 Mac OS X (10.3.9)

For each mailbox, Mail 1.x stores messages sequentially in an mbox file within the *.mbox package associated with the mailbox -- you can see the files contained in an *.mbox package by ctrl-cliking on it in the Finder and choosing Show Package Contents from the contextual menu.
When a message is removed from a mailbox in Mail 1.x, the actual message may be completely erased from the mbox file, or it may remain there just marked for deletion in one of the other supporting files within the *.mbox package. In order to reduce the mailbox size when a message is deleted from the middle, the entire mailbox would have to be rewritten to disk every time, which is clearly not practical.
When attachments are removed from a message, the attachments aren’t actually removed from anywhere. What really happens is that Mail creates a new message without the attachments and deletes the original message... and now you know what it really is that actually happens when a message buried in the middle of the mailbox is deleted...
My only complaint is mail does not tell you the size of a
mailbox in the application
Mail 1.3 sure does. The size of the selected mailbox is displayed in the status bar (View > Show Status Bar). Interestingly enough, that feature is no longer available in Mail 2.x.

Addressbook file size exploding since upgrade to SL

I had noticed that searching my addressbook was getting really slow. I discovered now that since upgrading to SL, my addressbook file size (which i see by exporting it as an 'addressbook archive' has exploded from c.40MB to c.300MB since upgrading to SL. i have a few entries with pictures but not that much (say 100) from a total number of entries of circa 2600.
Can anyone tell me what their addressbook file size is with the number of entries?
is there a way to rebuild the addressbook or compress it?
i sync my addressbook with mobileme and my iphone and it's set to link to exchange although these entries don't seem to sit on the mac or in the addressbook backups.
thanks.
p

I noticed this too, both on Leopard and Snow Leopard.
If you check your ~/Library/Application Support/AddressBook/Images folder, you will probably find it has way more than the 100 images for your Photo-contacts in it.
I am guessing it is storing a new copy of your contacts photo each time one of them sends you an email - it's just a guess from looking at the random timestamps on them but it would be pretty easy to check.
I have no fix, but this will temporarily remove the bloat: -
- Open AddressBook
- Go to preferences and make sure exporting of photos in vcards is ON)
- Export all vcards or drag them to your desktop
- Quit AddressBook
- Move your ~/Library/Application Support/AddressBook/Images folder to the trash can
- Open AddressBook again
- Drag the vCards back in
I repeat, this is a quick bandage, not a solution!

Render file size bigger After Effects CC 2014

Hello, this seems like a silly question, but ever since the 'After Effects CC 2014' update my rendered files seem to be enormous in comparison to the files I rendered before the update!
I don't see why the update would have adjusted my render preferences, but it must have done as a 2min clip that rendered at 140mb before is now 10GB!!!
My knowledge of codecs and compression is limited but I had a good preset before the update which now seems to have changed (although I have always been rendering h.264/full quality/no audio so I don't understand how the file size can change so drastically).
Has anyone else experienced anything similar?
If not could you please advise me on how to render these files to a suitable size. Like I said they need to be h.264, 1920 x 1080 with no audio.
Thanks.

After Effects CC 2014 no longer supports the output of many delivery codecs, such as Mpeg4 and H264, through the Render Queue.
You can output far more formats, and in greater quality, using Adobe Media Encoder. You can send AE renders directly to AME from After Effects. You can import AE projects directly into AME. And you can also render high quality and/or lossless formats from the AE Render Queue and then re-encode them from AME.

File size changes after color adjustments

Anytime I adjust/edit a photo in iPhoto it results in a saved image that's half the size of my original. I wanted to bump the contrast and print a photo, but the image goes from 4MB to 2MB after a simple color adjustment. Does anyone know how to stop this?

Is there anyway to save the copy without a loss in file size
No. Like I said, it's in the nature of jpegs. Jpeg is a lossy format.
It seems to be an iphoto issue rather then a jpeg issue.
Don't think so.
When I make adjustments to a jpeg in photoshop and save it, the file size is not effected.
Where are you seeing that reported? I just auto-coloured a jpeg with CS4 and saved it at 9 on Photoshops scale of 12 and the file size reported in the FInder went from 4.5MB to 1.1.
Regards
TD

File size changes after importing photos

Quick question here. I've been using iphoto (now using iphoto 8)for a couple years and just noticed that after importing photos (I use a variety of original formats, usually jpeg or raw) the file size in iphoto is a lot smaller than the original (roughly half). First of all, why is this? Is there any way for iphoto to retain the original size? If I try copying a photo out of iphoto, say onto my desktop, the file size remains the same as it was in iphoto. In other words, it doesn't revert back to the original.
Any idea as to why it would do this?
Some help would be much appreciated.
Ads

Welcome to the Apple Discussions. When a raw file is imported iPhoto creates a jpg version so if you're looking at that and comparing to the size of the raw file, yes it will be smaller.
If you edit a photo the resulting file will be slightly smaller since there will be one level of jpeg compression added to the file. All subsequent edits will not cause any more compression because the edit instructions are saved in the database file and applied to the file for viewing, printing and exporting. That's why iPhoto calls it nondestructive editing.
If the photo is portrait oriented and comes from a camera which has the auto-rotate feature iPhoto will create a rotated version and that will contain some jpeg compression.
Dragging the photo to the desktop will bring the edited version which will be smaller. To get the original file export using the Format=Original setting as Larry has already pointed out.
If you're worried about image quality unless you will be printing a very large photo you'll be hard pressed to see any degradation in the image.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto (iPhoto.Library for iPhoto 5 and earlier versions) database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've created an Automator workflow application (requires Tiger or later), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. There are versions that are compatible with iPhoto 5, 6, 7 and 8 libraries and Tiger and Leopard. Just put the application in the Dock and click on it whenever you want to backup the dB file. iPhoto does not have to be closed to run the application, just idle. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.
NOTE: iPhoto 8's new option in it's rebuild library window, "Rebuild the iPhoto Library Database from automatic backup" may make this tip obsolete. We'll know when users have occasion to use it and see if that's the case.

File sizes explodes after removing hidden information

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