Rotate a single page, selected pages or the entire PDF.
Rotate a single page, a selection, or an entire PDF. Rotation is stored as a page flag, so it is completely lossless and instantly reversible.
Unlike rotating an image, PDF rotation does not redraw anything. Each page carries a rotation attribute — 0, 90, 180 or 270 degrees — and the viewer applies it at display time. Setting that flag costs nothing and loses nothing.
This also explains a confusing behaviour: a page can look correct in one viewer and sideways in another, because some software honours the flag inconsistently and some upload portals ignore it entirely when generating previews.
No, not at all. It sets a flag on the page rather than redrawing the content. It is fully lossless and reversible.
Yes. Select individual pages, a range, or all pages — different pages can carry different rotations in the same document.
That viewer or portal is ignoring the rotation flag. Rasterising the pages at the correct orientation and rebuilding the PDF produces a file that is correct everywhere.
Not in a PDF — the format only supports 90-degree increments. To straighten a tilted scan, rotate the source images with Rotate Images before building the PDF.
Essentially not. Only a small attribute changes; the page content is untouched.
No. Rotation is applied in your browser using pdf-lib and the file is saved directly to your device.