Manipulating EPS Images

Export EPS images to other formats

         One of the popular vector image formats for combining text, graphics, and images is Encapsulated Postscript (EPS). EPS documents contain a PostScript program with page descriptions for publishing and may also include encapsulated preview images. Vector graphic editing applications have used the EPS format to save graphic documents since the 1980s, and it continues to be widely used.

         With the Aspose.Imaging graphic library for Python, you can easily export EPS images to various file formats. To convert EPS images to other image formats, you simply load the EPS file into an `Image` object and save it in a different format, such as SVG, PNG, or PDF. Some image formats support various options for saving. In the case of the PNG image format, you can specify the color type as `PngColorType.GRAYSCALE`, as demonstrated in the Python code example below:

from aspose.imaging import Image
from aspose.imaging.imageoptions import PngOptions
from aspose.imaging.fileformats.png import PngColorType
import os


if 'TEMPLATE_DIR' in os.environ:
	templates_folder = os.environ['TEMPLATE_DIR']
else:
	templates_folder = r"C:\Users\USER\Downloads\templates"

delete_output = 'SAVE_OUTPUT' not in os.environ
data_dir = templates_folder

png_options = PngOptions()
png_options.color_type = PngColorType.GRAYSCALE

output_options = {
	os.path.join(data_dir, "output.svg"): None,
	os.path.join(data_dir, "output.png"): png_options
}

with Image.load(os.path.join(data_dir, "template.eps")) as image:
	for key, options in output_options.items():
		if options is None:
			image.save(key)
		else:
			image.save(key, options)
			
if delete_output:
	for file in output_options:
		os.remove(file)

Resize EPS images before export

         Moreover, you can perform additional operations on the image before exporting it to another image format. For instance, you can resize the image by increasing its width and height:

from aspose.imaging import Image
from aspose.imaging.imageoptions import PngOptions
from aspose.imaging.fileformats.png import PngColorType
import os


if 'TEMPLATE_DIR' in os.environ:
	templates_folder = os.environ['TEMPLATE_DIR']
else:
	templates_folder = r"C:\Users\USER\Downloads\templates"

delete_output = 'SAVE_OUTPUT' not in os.environ
data_dir = templates_folder

png_options = PngOptions()
png_options.color_type = PngColorType.GRAYSCALE

output_options = {
	os.path.join(data_dir, "output.svg"): None,
	os.path.join(data_dir, "output.png"): png_options
}

with Image.load(os.path.join(data_dir, "template.eps")) as image:
	image.resize(image.width * 2, image.height * 2)
	for key, options in output_options.items():
		if options is None:
			image.save(key)
		else:
			image.save(key, options)
			
if delete_output:
	for file in output_options:
		os.remove(file)

Extract preview image from the EPS files

         Some EPS files may contain embedded preview images for display in various graphic applications. These preview images can be in different formats like TIFF bitmap, Windows Metafile (WMF), or JPEG. Supported formats are listed in the EpsPreviewFormat Enumeration. You can extract a preview image from the EPS file using the get_embedded_images() method and save it as a separate file:

import aspose.pycore as aspycore
from aspose.imaging import Image
from aspose.imaging.extensions import StreamExtensions as strm_ext
from aspose.imaging.fileformats.eps import EpsImage, EpsPreviewFormat
import os


if 'TEMPLATE_DIR' in os.environ:
	templates_folder = os.environ['TEMPLATE_DIR']
else:
	templates_folder = r"C:\Users\USER\Downloads\templates"

delete_output = 'SAVE_OUTPUT' not in os.environ
data_dir = templates_folder

tiffPreviewStream = None
with aspycore.as_of(Image.load(os.path.join(data_dir, "template.eps")), EpsImage) as image:
	tiffPreview = image.get_preview_image(EpsPreviewFormat.TIFF)
    if tiffPreview is not None:
        tiffPreviewStream = strm_ext.create_memory_stream()
        tiffPreview.save(tiffPreviewStream)

# dispose memory allocated for tiffPreviewStream	
if tiffPreviewStream is not None:
	with tiffPreviewStream as _:
		tiffPreviewStream.seek(0)
		# do something with the stream tiffPreviewStream
		# ...