gvclang.txt

GSview 4.6 PostScript previewer。Ghostscript在MS-Windows, OS/2 and Unix下的图形化接口

2Registration
?Registration
 If you wish to support the development of GSview or wish
 to disable the GSview nag screen, please consider registering
 GSview.  There is no requirement for you to register GSview.
 GSview is made available with the Aladdin Free Public Licence,
 contained in the file `LICENCE`.
 This allows free use, but restricts commercial distribution.

 The registration fee is currently AUD$40.
 GSview can be registered online at
  http://www.ghostgum.com.au/
 or by faxing or mailing the
 registration form which can be found in the file `regorder.txt`
 in the GSview directory.
 Ghostgum Software prefers that you use the online registration.
2Document Structuring Conventions
?Document Structuring Conventions
?DSC
?Encapsulated PostScript
?EPSF
?EPS
 Adobe has defined a set of extended comment conventions that provide
 additional information about the page structure and resource
 requirements of a PostScript file.
 If a file contains these Document Structuring Convention (DSC) comments,
 GSview can display pages in random order using `Goto Page` and display pages
 in reverse order using `Previous Page`.  Selected pages can be extracted to
 another file or printed.

 If a file does not contain DSC comments, GSview can only
 display the pages in the original order.

 DSC conforming files start with the comment line:
  %!PS-Adobe-3.0
 where the number 3.0 may change and is the DSC version number.
 Some programs write PostScript files with a control-D as the first
 character of the file, followed by the comment line mentioned above.
 GSview will correctly report that these files are not DSC conforming,
 but will still display them with page selection features available.
 Complain to the author of the program that produced the PostScript file.
 To make the file DSC conforming, edit it to remove the control-D character.

 DSC conforming files contain lines such as:
  %%Pages: 24
  %%Page: 1 1
 These lines tell GSview how many pages a document contains and
 where they start.  GSview uses this information to select
 individual pages.

 Encapsulated PostScript Files (EPSF) are single page documents
 that contain a subset of the `DSC` comments and PostScript commands.
 EPS files start with the comment line:
  %!PS-Adobe-3.0 EPSF-3.0
 EPS files are commonly used for inclusion in other documents and
 for this reason require the bounding box comment:
   %%BoundingBox: llx lly urx ury
 where llx, lly, urx and ury are integers giving the x and y co-ordinates
 of the lower left and upper right corners of a bounding box which encloses
 all marks made on the page.

 Some EPS files contain a preview of the PostScript document.
 This preview can be a Windows Metafile, a TIFF file, or an Interchange
 preview (EPSI format).
 For the Windows Metafile or TIFF file preview, the EPS file under DOS
 contains a binary header which specifies the location and lengths of
 the preview and PostScript language sections of the EPS file.
 For the Interchange format, the preview is contained in DSC comments
 starting with
  %%BeginPreview: width height depth lines
 An EPS file with a preview can be created from an EPS file without a
 preview using `Add EPS Preview`.

 GSview may give warnings when documents contain incorrect DSC
 comments.  This can be changed with `Options` | `DSC Warnings`.
2Portable Document Format
?Portable Document Format
?PDF
?pdf2ps
?ps2pdf
 GSview can display and print PDF files, although there are a number
 of limitations with the current method.

 When displaying, GSview ignores the page size on the Media menu,
 and instead uses the /MediaBox from the PDF file.
 If `Options` | `EPS Clip` is enabled, GSview will use the /CropBox
 from the PDF file.

 GSview needs to `Open` a PDF file to count the pages.  If you
 `Select` the file, GSview will not be able to `Text Extract`,
 `Find`, `Goto Page` or do any other operation that needs to know
 how many pages are in the document.

 pdfmark link support is crude.

 To convert a PostScript file to a PDF file, use `File` | `Convert`,
 then select the `pdfwrite` device.

 To convert a PDF file to a PostScript file, use `File` | `Convert`,
 then select the `pswrite` device.

 `File` | `Extract` does not work for PDF files.
 Extracting PDF pages extracts PostScript rather than PDF.


 To batch convert multiple files, look at
X
 ps2pdf.
WP
 ps2pdf.bat and pdf2ps.bat
 in the Ghostscript directory.
 You will need to use
P
 gvpm.exe
W
 gswin32c.exe
WP
 instead of gs.exe.  You may also need to set the Ghostscript
 include path using `-I` or the environment variable `GS_LIB`.
E
2Opening a Document
?File
?Open
?Select File
?Save As
?Close
 The `Open` command on the `File` menu opens a file and displays
 the first page.

 If the file contains `DSC` comments, pages can be selected using
 `Next Page`, `Previous Page` and `Goto Page`.

 If the file does not contain `DSC` comments, `Previous Page` and `Goto Page`
 will not work.  Another file should not be selected until a last page of
 the file has been displayed.

 When a file is open, GSview will display the document filename,
 the current page (if available) and while the cursor is over
 the image, the location of the cursor in co-ordinates specified
 by `Options` | `Units`.  The co-ordinate can be PostScript points
 (1/72"), millimetres or inches.
 The cursor location is useful for calculating bounding boxes.

 The `Select File` command is similar to `Open` but it does not display
 the document.
 This command is useful for opening a document prior to printing it.

 The `Save As` command saves a copy of the current document.
 This is useful if GSview is being used as a PostScript viewer by
 another application and you wish to save the currently displayed file.

 The `Close` command closes the currently open document.
 This should be used before the current file is changed by another
 program.
 If you do not do this and GSview detects that the file length or date
 have changed, it will close Ghostscript and rescan the document.

 See also `Print`.
2Page Selection
?Page Selection
?Next Page
?Previous Page
?Redisplay
?Goto Page
?View
?Fit Window
?Full Screen
 `View` | `Next Page` or the `+` button moves to the next page of a
 document.
 This works even if the document does not contain `DSC` comments.

 `View` | `Previous Page` or the `-` button moves to the previous page.

 `View` | `Redisplay` or the `F5` key redisplays the current page.

 `View` | `Goto Page` or the `pointing hand` button shows a dialog box
 which allows selection of the next page number to display.
 The `Select Page` dialog box shows page labels since these are likely
 to be more useful than a sequential page number.

 `View` | `Next Page and Home` or the space bar moves to the top of the
 next page of a document.

 `View` | `Previous Page and Home` or the BackSpace key moves to the
 top of the previous page.

 The `Previous Page`, `Redisplay` and `Goto Page` commands work only if the
 document contains `DSC` comments.

 `View` | `Fit Window` or the `F6` key changes the display resolution
 to fit the entire page within the current window.  Repeated use
 causes either the width or height of the page to fit the current
 window.

 `View` | `Full Screen` or the `F4` key displays the page full screen
 (without title bar, scroll bars etc.).
 To return to normal display, press the Escape key.
2Document Information
?Info
 A brief information area at the top of the window is used by
 GSview to display the document filename, the current page number
 and label (if available) and while the cursor is over the image, the
 location of the cursor (relative to the lower left corner of
 the paper) in co-ordinates specified by `Options` | `Units`.
 The cursor location is useful for calculating bounding boxes.

 The `Info` command on the `File `menu shows a dialog box with the
 following information about the `DSC` comments in the current document.

 `File `is the full pathname to the document.

 `Type` is` DSC`,` EPS`, `No DSC comments` or `Ignoring DSC Comments`.
 `EPS` is an Encapsulated PostScript File - a single page document
 that contains a subset of the `DSC` comments and PostScript commands.
 `EPS `files are commonly used for inclusion in other documents.
 `Ignoring DSC Comments` is displayed if `Options` | `Ignore DSC`
 is selected.
 These may be prefixed by `Ctrl-D followed by` or `PJL followed by`.
 Both of these indicate that the document does not comply with
 the DSC because there is some garbage at the beginning of the
 document.  To fix the former, see `Common Problems`.
 To fix the latter, do not use a HP LaserJet driver when creating
 PostScript documents for distribution to others.

 `Title` is a text title that can be used when printing banner
 pages and for routing or recognising documents.

 `Date` is the time the document was created.

 `BoundingBox` specifies a box that encloses all the marks painted
 on the page.  The four integer values are the co-ordinates of the
 lower left and upper right corners of the bounding box in default
 user co-ordinates (1/72 inch).

 `Orientation `is the default page orientation and is either
 `Portrait `or` Landscape`.  See the `Orientation` menu.

 `Page Order` is either `Ascending`, `Descending` or `Special`.
 If `Page Order` is `Descending`, GSview automatically reverses
 the pages when displaying or printing so they appear in
 ascending order.  When extracting or printing, GSview can
 be instructed to print pages in descending (reverse) order.
 `Special` means that pages should not be reordered.

 `Default Media` gives the media name followed by the width and
 height of that media in default user co-ordinates (1/72 inch).

 `Pages` is the total number of pages in the document.

 `Page` gives the page label and page number.

 `Bitmap `is the size of the display bitmap in pixels which may be
 useful if you are copying the displayed image to the clipboard.
W
2Printing
?Print
 The `Print` command on the `File `menu allows printing of the document
 using Ghostscript.  There are three methods used by GSview for
 printing: `Windows GDI printer`, `Ghostscript device`
 or `PostScript printer`.

 `Windows GDI printer` uses Ghostscript to create bitmaps for
 each page, and prints these using the standard Windows printer
 driver.  This is the slowest print method, but should work with
 most printers.

 `Ghostscript device` uses the Ghostscript printer drivers.
 This is faster, but you need Ghostscript to have a driver for
 your printer and you need to know what it is called.
 For example, the HP LaserJet 4 uses ljet4.
 See the Ghostscript documentation for more details.

 `PostScript printer` doesn't use Ghostscript for printing
 PostScript files.  Instead the file is sent directly to
 the printer.

 There is a significant amount of interaction between settings
 on the print dialog.  For example, selecting `Ghostscript device`
 disables the `Properties `button because this isn't relevant.
 More details are in the following topics.

 See also `Conversions` and `Convert`.
3Select Pages
?Select Pages
 When printing, a range of pages can be selected.
 Within this range, you can select all pages, odd pages or even pages.
 If you select odd pages in the range 10 to 20, the first to
 be printed will be 11.

 The `Select Pages` button may be disabled if it is not supported by
 the print method.

 The `Reverse` check box causes the pages to be printed in
 descending order.  This is enabled only if the document
 contains `DSC` comments.

 If you wish to print selected pages from a `DSC` document that
 has special page ordering (i.e. the pages can not be reordered),
 select `Windows GDI printer` and `Ignore DSC`.
3Windows GDI printer
?Windows GDI printer
 This uses Ghostscript to create a bitmap for each page, and
 these are printed using the standard Windows printer driver.
 This should work on all printers that support raster graphics.

 By default, a monochrome bitmap is used for maximum speed.
 If you want colour, you will need to enable this using
 the `Settings `button.

 To control how GSview handles requests by the PostScript or
 PDF documents to change the page size, see the
 `Page Size Matching` topic.

 `Options `is usually empty, but may contain Ghostscript command
 line options.  Use with care!

 This print method allows selected pages to be printed, even if
 a PostScript document does not contain `DSC` comments.  It does
 this by rendering all pages, but only sending the requested ones
 to the printer.  This may be very slow.
3Ghostscript device
?Ghostscript device
?uniprint
 The `Select Ghostscript Device` dialog box allows selection of
 the Ghostscript printer device and resolution.
 The default list of available devices and resolutions is stored
 in the [Devices] section of gsview32.ini and is taken from the
 standard distribution version of Ghostscript 6.0.
 You can use other devices or resolutions.

 To control how GSview handles requests by the PostScript or
 PDF documents to change the page size, see the
 `Page Size Matching` topic.

 Some Ghostscript options may be added using either the` Options`
 field or the `Properties` button.

 The `uniprint` button selects the uniprint device and displays a list
 of available configuration files (*.upp) for the uniprint device.
 If you select one of these configuration files, the configuration file
 name will be placed in the `Options `field of the Printer Setup.
 See the Ghostscript file `Devices.htm` for details of how to configure
 the uniprint device.
3PostScript printer
?PostScript printer
 If `PostScript Printer` is selected, the selected pages will be