Customizing JPedal
JPedal now includes the ability to customise certain parameters by passing values into the software.
This is achived with a PdfDecoder method modifyJPedalParameters(Map values).
How does it work?
The example code below gives examples of how to use this function and a full list of valid settings. It should be called before any files are opened.
Map mapValues=new HashMap();
mapValues.put(JPedalSettings.DISPLAY_INVISIBLE_TEXT,Boolean.TRUE);
mapValues.put(JPedalSettings.TEXT_HIGHLIGHT_COLOUR, Color.GREEN);
mapValues.put(JPedalSettings.CACHE_LARGE_FONTS,new Integer(65536));
//exception will be thrown if invalid value passed
PdfDecoder.modifyJPedalParameters(mapValues);
Valid settings
See also org.jpedal.constants.JPedalSettings
| Parameter | Valid values | Version added | Notes on usage |
| DISPLAY_INVISIBLE _TEXT |
Boolean.TRUE or Boolean.FALSE | 3.21b27 | Show text which is extractable but not usually shown . |
| TEXT_HIGHLIGHT _COLOUR |
Any Color | 3.21b27 | Set highlight colour used (default is blue). |
| TEXT_INVERTED _COLOUR |
Any Color | 3.41b26 | Usually text of highlights is inverted normal text color (so black text is drawn white when highlighted). If this value is set it will be hard-coded. |
| CACHE_LARGE_FONTS | Any number as an Integer | 3.22b09 | Set size in bytes at which fonts used on systems should be cached (ie avoid loading 100 meg Arial font into memory). Set to -1 to disable. |
| TEXT_PRINT_NON _EMBEDDED_FONTS |
true or false | 3.22b12 | Ensure all non-embedded fonts automatically use String printing TEXTPRINT mode. |
| IGNORE_FORMS_ ON_PRINT |
int[] array | 3.75b25 | Type or Subtype of form object NOT to print for example this code would stop any Form objects of types or subtypes listed being printed subtypes.Click for more details. |
| IMAGE_HIRES | Boolean.TRUE or Boolean.FALSE | 3.50b02 | Flag to enable use of images at the highest quality rather than down-sampling to 100%. This option will use more memory. |
| EXTRACT_AT_BEST _QUALITY |
Boolean.TRUE or Boolean.FALSE | 3.50b10 | Flag to enable extracting pages as images with much improved quality at the cost of greater memory usage (used by HiResThumbnailExtractor example) |
| EXTRACT_AT_BEST _QUALITY_MAXSCALING |
Any positive number as an Integer | 3.70b36 | EXTRACT_AT_BEST_QUALITY can result in some very large files. This parameter allows you to set a maximum value above which the image will not be scaled. If it is set to 3, the image will never be more than 3 times as big.(used by HiResThumbnailExtractor example). |
| EXTRACT_AT_ PAGE_SIZE | String[] containing width and height (ie new String[]{"1000","800"} | 3.70b36 | Set pagesize desired. Aspect ratio will be preserved and JPedal will generate largest image to fit this page size. (used by HiResThumbnailExtractor example). |
| PAGE_SIZE_OVERRIDES _IMAGE |
Boolean.TRUE or Boolean.FALSE | 3.70b36 | Choose which strategy takes priority. (used by HiResThumbnailExtractor example). |
| ALLOW_PAGES_SMALLER _THAN_PAGE_SIZE |
Boolean.TRUE or Boolean.FALSE | 3.84b07 | Flag to enable generating of images smaller than page size on image extraction. |
Return to main PDF support section
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