Rotate a page with pdf-lib and javascript

Question

I am making a website that can modify pdf files , and I was trying to be able to rotate a page or multiple pages but couldn't find how to do that in their docs .


 const pdfDoc = await loadSingleFile(inputFiles[0]) // An input pdf file

 const rotatedPdf = await PDFDocument.create();  // Intitialize the rotated pdf file

 const pageToRotate = pdfDoc.getPages()[pageIndex]
    

  // Not sure what to write here


 const pdfDataString = await rotatedPdf.saveAsBase64({ dataUri: true }); // here generate string for further use

@KJ That is what I was looking for , don't know how I did not find it . Thanks — Chakib Salah, Mar 27 '22 at 12:59
I appreciate that @KJ , I think I'll be able to do my thing now . — Chakib Salah, Mar 27 '22 at 13:07
Please do add an answer for this, since it seems you have solved it. Thanks — Fego, Mar 11 '23 at 10:38

score 2 · Accepted Answer · edited Jun 02 '23 at 21:52

2

I was able solve this following a comment on my question that suggested using these two functions

https://pdf-lib.js.org/docs/api/classes/pdfpage#getrotation to get the current page rotation degree.

https://pdf-lib.js.org/docs/api/classes/pdfpage#setrotation to rotate a page.

edited Jun 02 '23 at 21:52

Lee Taylor

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answered Mar 12 '23 at 17:48

Chakib Salah

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Rotate a page with pdf-lib and javascript

1 Answers1