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Aspose::Words::Saving::DownsampleOptions Class Reference
Allows to specify downsample options.
- Examples
Shows how to change the resolution of images in the PDF document.
auto doc = MakeObject<Document>(MyDir + u"Images.docx");
// Create a "PdfSaveOptions" object that we can pass to the document's "Save" method
// to modify how that method converts the document to .PDF.
auto options = MakeObject<PdfSaveOptions>();
// By default, Aspose.Words downsample all images in a document that we save to PDF to 220 ppi.
ASSERT_TRUE(options->get_DownsampleOptions()->get_DownsampleImages());
ASSERT_EQ(220, options->get_DownsampleOptions()->get_Resolution());
ASSERT_EQ(0, options->get_DownsampleOptions()->get_ResolutionThreshold());
doc->Save(ArtifactsDir + u"PdfSaveOptions.DownsampleOptions.Default.pdf", options);
// Set the "Resolution" property to "36" to downsample all images to 36 ppi.
options->get_DownsampleOptions()->set_Resolution(36);
// Set the "ResolutionThreshold" property to only apply the downsampling to
// images with a resolution that is above 128 ppi.
options->get_DownsampleOptions()->set_ResolutionThreshold(128);
// Only the first two images from the document will be downsampled at this stage.
doc->Save(ArtifactsDir + u"PdfSaveOptions.DownsampleOptions.LowerResolution.pdf", options);
#include <Aspose.Words.Cpp/Saving/DownsampleOptions.h>
Inheritance diagram for Aspose::Words::Saving::DownsampleOptions:
Public Member Functions | |
| DownsampleOptions () | |
| bool | get_DownsampleImages () const |
| Specifies whether images should be downsampled. More... | |
| int32_t | get_Resolution () const |
| Specifies the resolution in pixels per inch which the images should be downsampled to. More... | |
| int32_t | get_ResolutionThreshold () const |
| Specifies the threshold resolution in pixels per inch. If resolution of an image in the document is less than threshold value, the downsampling algorithm will not be applied. A value of 0 means the threshold check is not used and all images that can be reduced in size are downsampled. More... | |
| virtual const TypeInfo & | GetType () const override |
| virtual bool | Is (const TypeInfo &target) const override |
| void | set_DownsampleImages (bool value) |
| Setter for get_DownsampleImages. More... | |
| void | set_Resolution (int32_t value) |
| Setter for get_Resolution. More... | |
| void | set_ResolutionThreshold (int32_t value) |
| Setter for get_ResolutionThreshold. More... | |
Static Public Member Functions | |
| static const TypeInfo & | Type () |
Constructor & Destructor Documentation
◆ DownsampleOptions()
| Aspose::Words::Saving::DownsampleOptions::DownsampleOptions | ( | ) |
Member Function Documentation
◆ get_DownsampleImages()
| bool Aspose::Words::Saving::DownsampleOptions::get_DownsampleImages | ( | ) | const |
Specifies whether images should be downsampled.
- Examples
Shows how to change the resolution of images in the PDF document.
auto doc = MakeObject<Document>(MyDir + u"Images.docx");
// Create a "PdfSaveOptions" object that we can pass to the document's "Save" method
// to modify how that method converts the document to .PDF.
auto options = MakeObject<PdfSaveOptions>();
// By default, Aspose.Words downsample all images in a document that we save to PDF to 220 ppi.
ASSERT_TRUE(options->get_DownsampleOptions()->get_DownsampleImages());
ASSERT_EQ(220, options->get_DownsampleOptions()->get_Resolution());
ASSERT_EQ(0, options->get_DownsampleOptions()->get_ResolutionThreshold());
doc->Save(ArtifactsDir + u"PdfSaveOptions.DownsampleOptions.Default.pdf", options);
// Set the "Resolution" property to "36" to downsample all images to 36 ppi.
options->get_DownsampleOptions()->set_Resolution(36);
// Set the "ResolutionThreshold" property to only apply the downsampling to
// images with a resolution that is above 128 ppi.
options->get_DownsampleOptions()->set_ResolutionThreshold(128);
// Only the first two images from the document will be downsampled at this stage.
doc->Save(ArtifactsDir + u"PdfSaveOptions.DownsampleOptions.LowerResolution.pdf", options);
◆ get_Resolution()
| int32_t Aspose::Words::Saving::DownsampleOptions::get_Resolution | ( | ) | const |
Specifies the resolution in pixels per inch which the images should be downsampled to.
- Examples
Shows how to change the resolution of images in the PDF document.
auto doc = MakeObject<Document>(MyDir + u"Images.docx");
// Create a "PdfSaveOptions" object that we can pass to the document's "Save" method
// to modify how that method converts the document to .PDF.
auto options = MakeObject<PdfSaveOptions>();
// By default, Aspose.Words downsample all images in a document that we save to PDF to 220 ppi.
ASSERT_TRUE(options->get_DownsampleOptions()->get_DownsampleImages());
ASSERT_EQ(220, options->get_DownsampleOptions()->get_Resolution());
ASSERT_EQ(0, options->get_DownsampleOptions()->get_ResolutionThreshold());
doc->Save(ArtifactsDir + u"PdfSaveOptions.DownsampleOptions.Default.pdf", options);
// Set the "Resolution" property to "36" to downsample all images to 36 ppi.
options->get_DownsampleOptions()->set_Resolution(36);
// Set the "ResolutionThreshold" property to only apply the downsampling to
// images with a resolution that is above 128 ppi.
options->get_DownsampleOptions()->set_ResolutionThreshold(128);
// Only the first two images from the document will be downsampled at this stage.
doc->Save(ArtifactsDir + u"PdfSaveOptions.DownsampleOptions.LowerResolution.pdf", options);
◆ get_ResolutionThreshold()
| int32_t Aspose::Words::Saving::DownsampleOptions::get_ResolutionThreshold | ( | ) | const |
Specifies the threshold resolution in pixels per inch. If resolution of an image in the document is less than threshold value, the downsampling algorithm will not be applied. A value of 0 means the threshold check is not used and all images that can be reduced in size are downsampled.
- Examples
Shows how to change the resolution of images in the PDF document.
auto doc = MakeObject<Document>(MyDir + u"Images.docx");
// Create a "PdfSaveOptions" object that we can pass to the document's "Save" method
// to modify how that method converts the document to .PDF.
auto options = MakeObject<PdfSaveOptions>();
// By default, Aspose.Words downsample all images in a document that we save to PDF to 220 ppi.
ASSERT_TRUE(options->get_DownsampleOptions()->get_DownsampleImages());
ASSERT_EQ(220, options->get_DownsampleOptions()->get_Resolution());
ASSERT_EQ(0, options->get_DownsampleOptions()->get_ResolutionThreshold());
doc->Save(ArtifactsDir + u"PdfSaveOptions.DownsampleOptions.Default.pdf", options);
// Set the "Resolution" property to "36" to downsample all images to 36 ppi.
options->get_DownsampleOptions()->set_Resolution(36);
// Set the "ResolutionThreshold" property to only apply the downsampling to
// images with a resolution that is above 128 ppi.
options->get_DownsampleOptions()->set_ResolutionThreshold(128);
// Only the first two images from the document will be downsampled at this stage.
doc->Save(ArtifactsDir + u"PdfSaveOptions.DownsampleOptions.LowerResolution.pdf", options);
◆ GetType()
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overridevirtual |
Reimplemented from System::Object.
◆ Is()
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overridevirtual |
Reimplemented from System::Object.
◆ set_DownsampleImages()
| void Aspose::Words::Saving::DownsampleOptions::set_DownsampleImages | ( | bool | value | ) |
◆ set_Resolution()
| void Aspose::Words::Saving::DownsampleOptions::set_Resolution | ( | int32_t | value | ) |
◆ set_ResolutionThreshold()
| void Aspose::Words::Saving::DownsampleOptions::set_ResolutionThreshold | ( | int32_t | value | ) |
◆ Type()
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static |