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  1. #1
    Super Moderator jscher2000's Avatar
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    Re: Reading PS files

    Opening that file in Photoshop Elements rendered the first page as a graphic. I'm fairly certain that's of no use to you, sorry.

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    Re: Reading PS files

    I'm no expert, but I tend to agree that the file was OCR'd from a graphic. When I copy/ paste part of the PDF (after conversion) I get:

    the theory of nite di erences ([6] page 83). This paper is divided into seven sec-
    tions, introduction, history, background, de nitions, properties, theorems, and


    The failed detection of the serifed ff, fl, fi etc. point to this. I think the blur is another issue, resulting from not embedding the fonts within the .ps file. I've come across these before, but some of them seem to print quite well in spite of it. Might be worth a go.

    Alan

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    Re: Reading PS files

    "Ghostscript" should be able to display your postscript files. Check it out here (it 's a GPL program, so it's free). http://www.cs.wisc.edu/~ghost/ .

    Looks like the PDF utility that we are starting roll out here also understands PS files http://pdf995.com/suite.html.


    Jim H

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    Super Moderator jscher2000's Avatar
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    Re: Reading PS files

    If you have the full version of Acrobat, doesn't it let you open the "PDF" file and then open the PDF document into Word? If so, does that repair the appearance of the text?

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    Reading PS files

    Hi all,

    I recently downloaded some PS files (whose extension stands for Post Script, if I'm right). I don't know the story behind these files; I think I read something about Ghost, but whatever. The fact is: how can I read them? I have Acrobat 5 full ver.'s Distiller associated to the .ps extension. When I double-click a PS file, Distiller will launch and start converting the PS to PDF. But all I get is a poor-looking PDF. Characters look blurry, and I don't know why. I tried to tweak the settings, but to no avail. Trying to read this is a real pain you know where.

    The interesting part of it is that although the PDF looks as if it had been converted from an image file (because of the blur and the low quality), you can still select and copy characters. They will (mostly) copy and paste into another application OK.

    Any thoughts? Any other (preferably <img src=/S/free.gif border=0 alt=free width=30 height=15>) application to visualize this kind of files?

    Thank you in advance

    Edited to add: in case it helps, this is one of the files troubling me
    <img src=/w3timages/blue3line.gif width=33% height=2>
    <img src=/S/flags/Argentina.gif border=0 alt=Argentina width=30 height=18> <big><font color=4682b4><font face="Comic Sans MS">Diegol</font face=comic></font color=4682b4> </big>

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    Re: Reading PS files

    Hi Alan,

    Thanks for your comments. I don't know if it has been OCR'd... I'm not much into OCR, but when I viewed the file with GhostView (see replie below) everything looked just great. Again, I don't know how OCRing impacts in the resulting PS / PDF.
    <img src=/w3timages/blue3line.gif width=33% height=2>
    <img src=/S/flags/Argentina.gif border=0 alt=Argentina width=30 height=18> <big><font color=4682b4><font face="Comic Sans MS">Diegol</font face=comic></font color=4682b4> </big>

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    Re: Reading PS files

    Hi Jim,

    Yes, after my post last night I kept googling for the "ghost" I had mentioned there. In order to visualize PS files one apparently needs to first install Ghostscript and then Ghostview (there are different versions of each, but it seems determined versions of Ghostview will work with determined versions of Ghostscript, and only these).

    After installing and changing the PS association I could view the PS in all its splendor. Ghostview has an option to convert to PDF, but the results were nearly exactly the same. Ghostview lets you print the file, so I thought of printing to a PDF-capable printer (I have Acrobat and CutePDF). Results were much better this time, but it took a lifetime. Moreover, the prog seems to have printed as an image, so the resulting file was 5+ MB big (against 82 KB of the original PS file).

    Alan, I thought of printing, but I don't have a printer at home. It's more covenient for me to cram all I want to print into a floppy disk and go to one of the so-called [i]Cybercaf
    <img src=/w3timages/blue3line.gif width=33% height=2>
    <img src=/S/flags/Argentina.gif border=0 alt=Argentina width=30 height=18> <big><font color=4682b4><font face="Comic Sans MS">Diegol</font face=comic></font color=4682b4> </big>

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    Re: Reading PS files

    Hi Jeff,

    Yes, Acrobat 5 has an option to batch-convert PDF files to RTF. But the result is the same as if one tries to copy the text and then paste into a word processor -- looks pretty much as the sample Alan provides in his above post.

    That is, yes, it "repairs" the appearance of the text, but only for the characters that "survive" the experience. Many are misconverted or just missing. Now that I write this I think I get why Alan suggested the document might have been OCR'd but still this wouldn't make much sense, as it is a university paper (the page I got it from has many others in the same format) and I don't think the author will go printing and OCRing each time he wants something in the PS format... but I don't know.

    Sorry about the disorder in these posts, but for those wondering how to make PS files, just print your file with the Print to File box checked. Save it with the PRN extension. Open this new file with Ghostview, and with it you can save as PS, EPS, PDF, and a few other formats. It also includes several image formats. Great!

    Thanks for all the feedback.
    <img src=/w3timages/blue3line.gif width=33% height=2>
    <img src=/S/flags/Argentina.gif border=0 alt=Argentina width=30 height=18> <big><font color=4682b4><font face="Comic Sans MS">Diegol</font face=comic></font color=4682b4> </big>

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    Re: Reading PS files

    Diegol,
    This has grabbed my interest, to the extent of reinstalling Ghost and going through the motions. As I said, I'm no expert and keen to learn. Just FYI, this is what I've done:

    Viewed the PS file in GSV. Same result as you - looks perfect on screen. I'm wondering if it's because I selected "Install fonts" option when installing GS ???

    Tried converting to PDF using a 3rd party tool (nothing to do with GS). Results poor on screen, but prints out perfectly. PDF file size is 162KB. Really odd though, is that OCR suspicion I had. The PDF doesn't show those "faults" I mentioned with seriffed letter pairs, when viewed in Acrobat Reader on screen. BUT, when I copy then paste some selected text to a text editor, those "faults" show up. It's as if AR is doing its own internal OCR, and failing on certain letter pairs. When I let GS convert to text, from this same PDF, no such failure occurs, but it's pure text so formatting etc. is lost.

    Tried converting to PDF using GS. Same poor screen quality. File size 112KB. Attempts to copy/ paste text from AR resulted in gobbldygook. Maybe this is what you were referring to as converting to a graphic?

    Anyway, just my observations so far. I think there's a lot of "behind the scenes" stuff going on here, that I've yet to fathom.

    Alan

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    Re: Reading PS files

    Hi Alan.

    > I'm wondering if it's because I selected "Install fonts" option when installing GS ???

    So did I, so I cannot tell...

    > Tried converting to PDF using a 3rd party tool (nothing to do with GS). Results poor on screen, but prints out perfectly. PDF
    > file size is 162KB.

    Which tool are you using? How did you convert it: via the Convert option, or just by printing to a PDF-capable printer? I didn't test whether any of the poor-looking PDFs print out OK. But eventually I'll do if I can't get a clean, light PDF.

    > Tried converting to PDF using GS. Same poor screen quality. File size 112KB. Attempts to copy/ paste text from AR resulted in
    > gobbldygook. Maybe this is what you were referring to as converting to a graphic?

    Not quite... I didn't use the Convert option, but the Print menu. I tried printing to PDF from GSV. The results were much better, if not perfect. But the file size was 5 MB. And I had the Idea of "printing as an image" like when you convert an image containing text to PDF. The text reads, but you can't select it (in the PDF file). That's what happened to this bloated PDF.

    Additionally, GSV does offer the possibility to export to image. And I'm sure you have noticed this and all the formats available in the Convert dialog box. But just in case...

    I've been exploring how printing to file works. PRN file sizes are huge as well, but how does one effectively get these files printed out? Just being curious. Edited to add: assuming one does NOT have GSV.
    <img src=/w3timages/blue3line.gif width=33% height=2>
    <img src=/S/flags/Argentina.gif border=0 alt=Argentina width=30 height=18> <big><font color=4682b4><font face="Comic Sans MS">Diegol</font face=comic></font color=4682b4> </big>

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    Re: Reading PS files

    I'm using Jaws PDF creator, which has a PStoPDF stub. But when I converted from GS, I used the convert option, rather than the print-to-driver method. You'll find that .prn files are always bloated, compared with the original, because they contain all the printer codes that are interpretted directly by the particular printer they're destined for. Accordingly, they can be sent directly to the printer, using the DOS command:
    copy filename.prn /b prn /b

    I haven't used GS/ GSV for a long time, but I believe it's possible to export to .jpg and multipage TIFF, through somewhat convoluted means (Edited - in association with RedMon - Redirection Port Monitor}. I'll look this up if you want. Meantime, have you looked at pstoedit?

    Alan

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    Re: Reading PS files

    Hi Alan,

    Yes, it's possible to convert to multipage TIFF among other formats with the Convert option.
    I've tried printing to another PDF-capable printer mentioned here not so long ago: PrimoPDF, and the results were better. The file I was having trouble with (the PS that resulted in a 5-meg PDF) printed to PDF faster and the file was "only" 2.5 megs. There is another interesting thing to this fact: when I downloaded PrimoPDF I automatically compared output PDFs and file sizes with CutePDF's. The latter was faster and produced smaller documents than Primo. But as you see there's at least one exception!!

    Thanks for refering me to pstoedit. Unfortunately the conversion to PDF is not without flaw. Letters' size seems to vary at random. So does the bold formatting. Moreover, equation objects screw up. That's what happens at a glance. Unfortunately, I repeat, because for the rest, the document reads beautifully. I'd rather deal with poorly formatted letters than with blurry ones, but these papers are useless without the equations.

    I downloaded RedMon, but I can't put it to use. How is it supposed to work?

    Thanks much
    <img src=/w3timages/blue3line.gif width=33% height=2>
    <img src=/S/flags/Argentina.gif border=0 alt=Argentina width=30 height=18> <big><font color=4682b4><font face="Comic Sans MS">Diegol</font face=comic></font color=4682b4> </big>

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    Re: Reading PS files

    Hi Diegol

    There are various instructions for Creating a free PDFWriter Using Ghostscript using Remon. How useful it is, compared to what you've got, is a bit of a subjective call. It was one of the first free methods around I think, but may have been equalled or surpassed by other freebies now.

    The Redmon method is a bit clunky, so you can use freepdf (by ZipGuy) to automate the process. Unfortunately I can't find a working download at present.

    Alan

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    Re: Reading PS files

    Hi Alan,

    Sorry for the delay in response. Thanks for the link with the instructions.
    Unfortunately, neither Redmon nor FreePDF (I downloaded an old beta from PC Mag I think) got things right.
    Additionally, I downloaded another app called PDF Creator, which also works with GS to create <img src=/S/free.gif border=0 alt=free width=30 height=15> PDFs. But to no avail: results are just as poor.

    At this point I think there must not be a way to do what I want. It would be nice if there were an option to create an EXE file wich includes the PS and a built in engine to visualize it (like EXE files that have the unzip engine built in to extract compressed files regardless of whether you have the prog installed or not -- another example are SDAs -Self Decrypting Archives- from PGP 7).

    Thank you for your continued support
    <img src=/w3timages/blue3line.gif width=33% height=2>
    <img src=/S/flags/Argentina.gif border=0 alt=Argentina width=30 height=18> <big><font color=4682b4><font face="Comic Sans MS">Diegol</font face=comic></font color=4682b4> </big>

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    Re: Reading PS files

    Hi Diegol,

    Your ps file was produced with dvipsk 5.58f, by Radical Eye Software. This is a Linux DVI-to-PostScript translator. You can get a copy from: http://aixpdslib.seas.ucla.edu/packages/dvipsk.html DVI files are typically produced by TeX software (eg LaTeX). DVI files are a form of DeVice-Independent files, much like pdfs. Seems your pdf was converted from one device independent format to another.

    Cheers
    Cheers,

    Paul Edstein
    [MS MVP - Word]

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