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Acrobat 9.0 wouldn't open the 200 page page PDF posted a while back so I
opened it with STDU Viewer then exported as PDF. That done I converted to
200 .tiff-s, cleaned up all the overscan and Cerlox cruft, rebuilt and
OCR-d. The new PDF is here


Bill @ PEARL, Inc.

Wow -- thanks for doing all that work! It would be great to have that uploaded to tekwiki, as well.

--Tom

--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
350 Jane Stanford Way
Stanford University
Stanford, CA 94305-4070

Someone with the password chops might go ahead and do that any time.
Bill @ PEARL, Inc.

How wonderful, it looks great!!! your time is greatly appreciated. Thank you.
also very timely as i finally have a trace on my newly acquired 575, now to have time get the baby running correctly.
搁别苍é别

I've just uploaded it to Tekwiki now.

Regards,
Jared

Off list Brian asked:

Can you give any advice on a work methodology for doing a good
correction to fix existing PDFs.

and I offered the following:

Perhaps surprisingly, it's not that simple.

I use Acrobat 9.0, an old 7.1 version of Photoshop and for
page-at-a-time scanning an Epson "Perfection V600 Photo Scanner" as it's
hi-res and the software has a great gamma control, which is crucial.

Starting from scratch to build a new PDF:
- scan 600dpi greyscale .tiff-s, nothing less will do,
- open in Photoshop onto a preset 8.5 x 11 page,
- Select All, right click and select "Free Transform"
- use all those tools to resize, relocate rotate deskew etc,
- use the Dust and Scratches tool set to 2 pixels to get
rid of the almost inevitable pixelation and other small
noise artifacts,
- get used to the facts that this is a long learning curve
and a slow process,
- save the file,
- do the rest of the files and select them all,
- open Acrobat and select "Merge Files Into a Single PDF"
- drag the selected files into the Acrobat window that
just opened and hit whatever is the button that makes a
PDF of your stuff,
- Acrobat will eventually finish and ask you where to put
your new PDF, do all that,
- open the PDF, find the OCR tools and select "Clearscan OCR"
let that run and it'll cut your file size to 1/10th or less,
- open the now OCR-d PDF and select View Bookmarks, click on
one of the page names then select all then hit the garbage can
icon to ditch all the individual page names you don't want,
- then set all the opening options, etc to make thing open the
way you want it to,
- and provided you didn't make any mistakes you're home and dry.

To rework an existing PDF, open it in Acrobat then File >> Export >>
Image >> Tiff >> Settings >> Conversion >>:

Set 'Colorspace' to Grayscale or RGB and 'Resolution' to 600
pixels/inch and click 'OK'.
Then,for convenience sake, assign a -short- filename, pick/create a
destination folder and set 'Save as type' to 'TIFF', click 'Save' and let
Acrobat run then go to the second step above and proceed.

See the screenshot for my setup in Photoshop, noting that I've worked
up quite a few 'Actions' that save a lot of time and tedium

========================

Repeat thru about 200 PDFs and you'll be pretty much up to speed.
Long, slow pita is this business.

Bill @ PEARL, Inc.

Thank you so much for doing that! I just brought home a 575 yesterday. It runs perfect at the moment. My 576 acts up sometimes, so it will be a nice back up.

Hi Bill,

Thanks for the info.
I'd like to add that anyone still using Acrobat 9 today will have to be mindful of the numerous security problems in that product.
It should not be used to open documents of unknown provenance.
To my knowledge, it is still possible to install a current version of the Reader in parallel and set that as the default program to open PDFs (or a third party PDF reader if you prefer).

I was also never happy with its OCR component for technical documents. I'm now using FineReader configured to additionally recognize Ohms, mu and similar symbols.