SVG Image Is Too Blurry When Converting Presentation Slides to Thumbnails or PDF

Aspose.Slides Product Family
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1

When attempting to add an SVG image to a slide in PPTX format, it displays perfectly. However, when exporting the PPTX to PDF or thumbnails, the image becomes very blurry. This issue only occurs with SVG images.

OS: Ubuntu
Library: Aspose slides - Python via .Net

PDF Export:

pdfOptions = slides.export.PdfOptions()

# Sets the Jpeg quality
pdfOptions.jpeg_quality = 100

# Sets the behavior for metafiles
pdfOptions.save_metafiles_as_png = True
pdfOptions.sufficient_resolution = 100

# Sets the text compression level
pdfOptions.text_compression = slides.export.PdfTextCompression.NONE

# Defines the PDF standard
pdfOptions.compliance = slides.export.PdfCompliance.PDF15
presentation.save(
    test.pptx,
    slides.export.SaveFormat.PDF,
    pdfOptions,
)

Thumbnail export:

with open(file_name, 'wb') as file:
    # setting svg export params
    svgOptions = slides.export.SVGOptions()
    svgOptions.vectorize_text = True
    svgOptions.jpeg_quality = 100
    svgOptions.pictures_compression = 3
    slide.write_as_svg(file, svgOptions)

PFA
Files.zip (269.1 KB)

2

@anantutkpd,
Thank you for reporting on the issue. I am working on the problem you described and will get back to you as soon as possible.

1 Like
3

@anantutkpd,
I was unable to reproduce the blurred image issue. Please check your results carefully again. Please use the latest version of Aspose.Slides for Python if it is possible. If the issue persists, please share the following information:

  • Ubuntu version on which the conversion was performed
  • Aspose.Slides version you used
4

@andrey.potapov
Issue is still there, the generated thumbnails and pdf files are already attached in the main ticket. Please check those files.

My ubuntu version: Ubuntu 22.04.1 LTS
Aspose: 23.2.0

5

@anantutkpd,
Thank you for the additional information.

We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): SLIDESPYNET-87

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.

6

@anantutkpd,
The issues you found earlier (filed as SLIDESPYNET-87) have been fixed in Aspose.Slides for Python 24.12 (Windows x64, Windows x86, Linux, macOS x86-x64, macOS ARM64).
You can check all fixes on the Release Notes page.
You can also find the latest version of our library on the Product Download page or PyPI.

7

Issue ID(s): SLIDESPYNET-87

We are facing the same issue in Java. Has this been fixed for Java - what is the release version?

8

@pawann,
The issue should also be resolved in Aspose.Slides for Java 24.12. If the problem persists, please share a sample presentation and output files.