exceljs/exceljs

[Bug] Insert Image to Excel returns wrong size

Open

#1,036 opened on Nov 25, 2019

View on GitHub
 (7 comments) (3 reactions) (0 assignees)JavaScript (1,534 forks)batch import
help wanted

Repository metrics

Stars
 (11,838 stars)
PR merge metrics
 (No merged PRs in 30d)

Description

I have an image that has 191x47 pixels. arubaito

    worksheet.addImage(imageID, {
      tl: { col: column, row: row },
      ext: { width: size.width, height: size.height }, // width: 191, height: 47
    });

But when I open excel file, the height was automatically scaled 160%, and 157% with width.

So how can I insert the original size of an image to excel?

Contributor guide

Research direction
Investigate the addImage method in the exceljs library to understand how image dimensions are calculated and applied to the Excel output. Look for any scaling factors or unit conversions that might cause the discrepancy.
Tech stack
javascript
Domain
api
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75