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Merging pdfs in Adobe Acrobat

BargainSnatcher 3,525 1,725 October 3, 2015 at 12:21 AM
I need to merge 2 PDFs. One is around 120mb, the other 130mb. The file size is not an issue. Retaining as much quality is important as the file contains images and will be going to a printers.

Both files have the Pdf/x-a standard. Both were originally created in Adobe illustrator and saved as a pdf. Due to the artboard limit of 100 i had to create 2 files.

I went ahead and got the free trial of Adobe Acrobat dc.

I went ahead and merged them and the 2 files combined are now 73mb. I don't see much in terms of setting for the quality, just Small, default and larger. Am i missing something?

Should i be concerned? The original files for this particular merge were a combination of formats (.eps and .png, some with transparancy) and it appears the file retained its pdf/x-a compliance.

Also, if the main thing i need acrobat for is pdf mergers, would i be better off buying version 9-10 instead? Would that work just as well? I'm not keen on the whole $15 a month subscription.

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#2
Quote from BargainSnatcher View Post :
I need to merge 2 PDFs. One is around 120mb, the other 130mb. The file size is not an issue. Retaining as much quality is important as the file contains images and will be going to a printers.

Both files have the Pdf/x-a standard. Both were originally created in Adobe illustrator and saved as a pdf. Due to the artboard limit of 100 i had to create 2 files.

I went ahead and got the free trial of Adobe Acrobat dc.

I went ahead and merged them and the 2 files combined are now 73mb. I don't see much in terms of setting for the quality, just Small, default and larger. Am i missing something?

Should i be concerned? The original files for this particular merge were a combination of formats (.eps and .png, some with transparancy) and it appears the file retained its pdf/x-a compliance.

Also, if the main thing i need acrobat for is pdf mergers, would i be better off buying version 9-10 instead? Would that work just as well? I'm not keen on the whole $15 a month subscription.

Acrobat Pro will do it (I think they have a trial you can use for free for 30 days).

There are also a number of others that may or may not do what you need:

http://download.cnet.com/windows/...7_4-0.html
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#3
sorry BargainSnatcher
SOME people can't read

did you work out the quality issue from the other post or is this the same project
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Last edited by stufine October 3, 2015 at 03:18 PM
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#4
Quote from stufine View Post :
sorry BargainSnatcher
SOME people can't read

did you work out the quality issue from the other post or is this the same project
Yes i did. I believe the issue was i was using transparent pngs in word which is a no-no.

I decided to just do everything in illustrator using artboards and managed to get the .eps and .ai files for the images i was using. The only problem with that is the 100 artboard limit. I'm just trying to avoid any potential issues.

I'm probably just going to send it is as it is. It looks fine when i zoom in so i hope the printer won't have any issues.
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#5
you could just try using a pdf printer.

or this

http://sourceforge.net/projects/pdfsam/
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#6
Quote from BargainSnatcher View Post :
I need to merge 2 PDFs. One is around 120mb, the other 130mb. The file size is not an issue. Retaining as much quality is important as the file contains images and will be going to a printers.

Both files have the Pdf/x-a standard. Both were originally created in Adobe illustrator and saved as a pdf. Due to the artboard limit of 100 i had to create 2 files.

I went ahead and got the free trial of Adobe Acrobat dc.

I went ahead and merged them and the 2 files combined are now 73mb. I don't see much in terms of setting for the quality, just Small, default and larger. Am i missing something?

Should i be concerned? The original files for this particular merge were a combination of formats (.eps and .png, some with transparancy) and it appears the file retained its pdf/x-a compliance.

Also, if the main thing i need acrobat for is pdf mergers, would i be better off buying version 9-10 instead? Would that work just as well? I'm not keen on the whole $15 a month subscription.
If I had to guess, based on the drop in size, Acrobat may have replaced lossless image compression with lossy jpeg or jpeg2k compression. Not having an Acrobat subscription, I couldn't tell you for sure, but there might be a setting to control this.
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#7
https://helpx.adobe.com/acrobat/h...--edit-pdf

Click the options button before you click the combine files button, there are probably some quality related options similar to those listed here: http://help.adobe.com/en_US/acrob...5ff-7f0d.w

It could be options like "Convert Smooth Lines To Curves Reduces the amount of control points used to build curves in CAD drawings, which results in smaller PDFs and faster on-screen rendering." are part of the file size reduction and may not represent a quality reduction. Look at various things in the output pdf at really high magnification like 800% to see if there's a quality difference. The printer resolution is significant as to whether the file size difference even matters.
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#8
You might give PDF Sam a try.http://www.pdfsam.org/ I would expect the file size to be very similar. 73m is way to small given your source.
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