Repeatable Product Evidence

Presentation Format Lab

A plain-language record of what each tool changes, preserves, skips, and verifies.

Workflow	Visual Layout	Editable Text	Links & Notes	Where It Runs
Public SlideShare → PDF	Slide images preserved	No	Not recreated	SaveSlide server
Public SlideShare → ZIP	Individual slide images	No	Not included	SaveSlide server
PDF → image-based PPTX	Each page rendered as an image	No	Flattened into page image	Your browser
PDF pages → image ZIP	Selected pages rendered as JPEG images	No	Flattened into page image	Your browser
PPTX image compression	Presentation structure retained	Yes, existing text remains	Existing package entries retained	Your browser
PPTX inspection / media extraction	No slide rendering	Not changed	Package entries copied unchanged	Your browser
Images → PDF / image-based PPTX	Images fitted without stretching	No	Not recreated from pixels	Your browser
PPT/PPTX → PDF	Unavailable until SaveSlide can verify accurate rendering.
Direct PPT and SlidePlayer processing	Unavailable pending consistent live-file verification.

Methodology

How Releases Are Checked

Our rigorous internal verification criteria for every tool before deployment.

The output signature and MIME type must match its extension, and the file must reopen in a compatible viewer.

The output must contain the selected pages in the selected order, with no silent additions or omissions.

Text must remain readable at normal viewing size and pages must fit without unintended cropping.

Compression results use actual input and output byte sizes. SaveSlide does not estimate a saving that was not produced.

Browser-only workflows are checked to ensure the source file is not submitted through a form, fetch request, or analytics event.

Review each tool's limitations before processing an important presentation.