Xoay trang PDF
Xoay trang PDF 90°, 180°, 270° cho toàn bộ tài liệu, theo range hoặc cho từng trang đã chọn — không upload, không cần Acrobat.
1. Select PDF
Drag and drop your PDF here
or click to browse
Tip: You can rotate individual pages from the preview tiles below, or use the rotation settings on the right to rotate multiple pages at once.
2. Rotation Settings
Preview
Load a PDF to preview pages here
Each page becomes a tile with its own rotate menu and selection checkbox.
Rotate PDF is a browser-based PDF page rotator. It fixes sideways scans, flips landscape pages, corrects upside-down phone captures, and re-orients exported reports so every page reads in the right direction. The entire rotation runs locally with PDF.js for thumbnail rendering and pdf-lib for writing the final output, so your document never leaves your device.
What it does
The tool reads each page of your PDF, lets you apply 90°, 180°, or 270° rotations either to the whole document or to specific pages, then saves a new PDF with the corrected orientation. Rotations are written as PDF page metadata. That means text stays selectable, fonts and images stay embedded, and the file size barely changes versus a re-rendered export.
Who it is for
- Office staff and students fixing scanned reports, contracts, ID copies, or homework that came out sideways.
- Photographers and designers preparing portfolios where some pages were captured in landscape.
- Researchers consolidating papers from different sources into one consistently oriented PDF.
- Anyone who wants a fast, private, no-signup way to rotate one or many PDF pages.
When and where to use it
Reach for this tool whenever a PDF reader shows pages on their side, upside-down, or in mixed orientations and you need to send the file along to someone else. It works in any modern desktop or mobile browser at /rotate-pdf. The 100 MB upload cap covers most real-world reports, scans, and presentations; for very large books, prefer a desktop browser to avoid mobile memory limits.
Why use a browser-side tool
Server-based PDF rotators upload your document to a third party, often retain the file for hours, and may rasterize pages, breaking selectable text. This tool processes everything in-browser, applies non-destructive page rotation through pdf-lib, and never sends your PDF over the network.
How to rotate a PDF
- Click the Drag and drop area, the upload button, or paste a PDF URL to load the document.
- Wait for the preview thumbnails to render. Each tile shows its page number, current rotation badge, a rotate dropdown, and a selection checkbox.
- Decide which pages to rotate. Use Select all / Deselect all, or use the helper rows to select a range or expression.
- Press Rotate left 90°, Rotate right 90°, Rotate 180°, or No rotation to apply to the checked pages.
- For one-off tweaks, open the rotate dropdown on any tile and pick a direction or reset the page.
- Use Preview PDF to inspect the rotated result in a slide-over viewer, then click Download Rotated PDF to save the file.
Every control, explained
1. Select PDF
- Drag and drop / click to browse: load a local PDF up to 100 MB. The dropzone highlights when a file hovers over it.
- Paste PDF URL + Add: fetch a remote PDF if the host allows cross-origin requests. If a URL fails, save the file locally first and drop it in.
- Loaded file card: shows filename, page count, byte size, and an X button to remove the file and start over.
- File loaded successfully: green confirmation that the PDF opened cleanly and thumbnails are rendering.
2. Rotation Settings
- Rotate left 90°: rotates each checked page 90° counter-clockwise (good for pages scanned with the top to the right).
- Rotate right 90°: rotates each checked page 90° clockwise (the most common fix for scanned reports).
- Rotate 180°: flips checked pages upside-down (corrects pages captured in reverse orientation).
- No rotation: resets the checked pages to the original orientation that the PDF shipped with.
- Select by range: from/to inputs plus Apply. Click Apply to set the selection to that page range and untick everything else.
- Select by expression: type comma- and dash-separated lists like 1,3,5-8. Press Apply or Enter to set the selection to those pages.
- Output filename: base name for the saved PDF. The .pdf extension is added automatically.
3. Preview
- Select all / Deselect all: toggle every page in the document at once.
- Grid view: large thumbnails arranged in a responsive grid, ideal for visual scanning.
- List view: compact one-line rows with rotation buttons inline, useful for documents with many pages.
- Pagination + per-page count: choose 12, 24, 48, or 96 thumbnails per view; arrows step through buckets when the PDF has more pages than the limit.
- Tile rotate dropdown: per-page Rotate left, Rotate right, Rotate 180°, and Reset rotation actions, applied independently of the bulk selection.
- Tile checkbox: marks a page as part of the bulk-rotation target. Bulk buttons only act on checked pages.
- Rotation delta badge: each tile shows the change versus the original rotation (for example 90°) so you can see at a glance which pages were modified.
4. Apply changes
- Reset all: restores every page to its original rotation in one click. Handy when you want to start over.
- Preview PDF: opens a slide-over panel with the rotated PDF rendered live, so you can verify orientation before saving.
- Download Rotated PDF: writes the new PDF using pdf-lib and triggers an immediate download.
Practical tips
- Use the expression field for repeating patterns: 2,4,6-10 selects pages 2, 4, 6, 7, 8, 9, 10.
- If only a couple of pages are sideways, leave the bulk selection at default and use each tile's dropdown for surgical control.
- Check the rotation badge on every modified tile before downloading. Pages without a badge keep the original orientation.
- For very large PDFs, switch to List view for faster scrolling and rotate by expression instead of clicking individual tiles.
Is this Rotate PDF tool free and private?
Yes. The rotation is performed locally in your browser. The PDF is never uploaded to a server and there are no watermarks.
Can I rotate only specific pages?
Yes. Use the page range or Select pages field with expressions like 1,3,5-8, or open the dropdown on individual thumbnails for fine-grained control.
Is text still selectable after rotating?
Yes. The tool sets the page rotation property in the PDF metadata. Text remains selectable, fonts and images stay embedded, and file size barely changes.
What does Reset all do?
It restores every page to the rotation it had when the PDF was loaded, so you can experiment freely without losing the original orientation.
Will encrypted PDFs work?
Password-protected PDFs cannot be rotated until they are unlocked. Remove the password in another viewer and re-upload here.
How big can the PDF be?
The current limit is 100 MB. Larger files can stress mobile devices, so prefer a desktop browser for very large documents.