Creating a brilliant carousel only to find out the text is cut off or the images are pixelated when you upload it is incredibly frustrating.
Separate LinkedIn's document-upload limits from your layout choices. Following file limits enables upload; it does not establish algorithmic performance. Check LinkedIn carousel size, readability, and the upload preview together.
Two Starting Layouts
When designing your slides, you have two primary choices for dimensions.
1. Portrait
Size: 1080 x 1350 pixels (4:5 Aspect Ratio)
Why try it: A portrait layout gives you vertical room for the explanation. Inspect its readability on a phone; no traffic percentage or attention guarantee is established here.
2. Square (Standard)
Size: 1080 x 1080 pixels (1:1 Aspect Ratio)
Why use it: It works well on both desktop and mobile. If you are repurposing an Instagram carousel directly to LinkedIn, square is the easiest format to use.
Technical Specifications
Beyond just the width and height, you must adhere to LinkedIn's file constraints to ensure a successful upload.
Designing for the "Safe Zones"
Do not treat a fixed pixel margin as an official platform guarantee. Check whether the exported pages remain readable in the actual document viewer, including its controls.
Worked Layout Check: An Illustrative Five-Page Guide
Suppose your source explains a handoff checklist. Use five pages for the question, required inputs, assigned roles, review step, and final checklist. This is a teaching example, not a tested engagement formula.
Export the same content in square and portrait layouts. Open each PDF at phone viewing size without zooming: can you read the role labels and the checklist? If not, shorten the sentence or split the crowded page rather than merely increasing export resolution. Check that page order matches the explanation and that the final instruction remains visible.
Next, inspect the LinkedIn upload preview before publishing. If an image looks blurred, compare the source image with the exported PDF to locate where quality was lost. If the export is clear but the preview differs, inspect another device before changing the source. Keep the readable export below the upload limits; choosing PDF does not guarantee parsing, display, or audience results.
The Easiest Way to Handle Specs A LinkedIn Carousel Maker connects source analysis, slide copy, visual design, and PDF export. Inspect the generated margins, page order, and text in the actual export and LinkedIn preview; automatic layout does not guarantee safe zones on every device.
A Note on Image Quality
While keeping the file size within the upload limit, maintain readable text and diagrams. When exporting your PDF from Canva, Figma, or Photoshop, compare the compressed export with the source. Readability is a publication check, not proof that readers will reach the final slide.