Reset PDF Page Rotation
Set page rotation metadata back to zero degrees
Reset PDF Page Rotation — what it does
Set every page's rotation metadata back to zero degrees. A PDF page carries a rotation value separate from its content, and when that value is wrong — as often happens after scanning or converting — pages display sideways in one viewer and upright in another.
When this tool helps
- Fixing a scanned document whose pages display rotated in some readers but not others.
- Normalising rotation before merging documents so the combined file is consistent.
- Clearing rotation applied by a converter that flipped pages unnecessarily.
How to use it
- Choose the PDF file.
- Reset the rotation.
- Download the corrected PDF.
- Check the pages display as expected.
Accuracy, limits, and good practice
- If pages then appear sideways, the content itself is rotated rather than the metadata — use the rotate PDF tool to turn it properly.
- Reset before merging documents from mixed sources; inconsistent rotation flags are a common cause of odd-looking bundles.
- Rotation metadata and content orientation are separate things, which is exactly why a page can look correct in one application and wrong in another.
- Reset first when a document behaves inconsistently across viewers: starting from zero makes any rotation you then apply predictable.
Frequently asked questions
What does rotation metadata do?
It tells a viewer to display the page turned by a set angle without changing the underlying content.
My pages are still sideways. Why?
The content is genuinely rotated. Resetting the flag cannot fix that — rotate the pages with the rotate tool instead.
Does resetting affect page content?
No, only the rotation property changes. Text, images and layout are untouched.
Will printing be affected?
Printers honour the rotation property, so a file that printed sideways should print upright once the flags are correct.
Related tools on this site
- Compress Image — Reduce JPG, PNG, or WebP file size locally
- Duplicate PDF Pages — Copy selected PDF pages one or more times
- Add PDF Page Numbers — Place page numbers on every PDF page
Everything above runs inside this page. Reset PDF Page Rotation needs no account, no upload, and no server round trip — close the tab and nothing is left behind.
重設 PDF 頁面旋轉能做什麼
把每一頁的旋轉中繼資料重設為零度。PDF 頁面帶有一個與內容分離的旋轉值，當它出錯時——掃描或轉檔後很常發生——同一份文件會在某個檢視器裡橫躺、在另一個裡端正。
什麼時候用得上
- 修正在某些閱讀器中顯示旋轉、在其他中卻正常的掃描文件。
- 合併文件前先統一旋轉，讓合併結果一致。
- 清掉轉檔工具多餘套用的旋轉。
使用步驟
- 選擇 PDF 檔案。
- 執行旋轉重設。
- 下載修正後的 PDF。
- 確認頁面顯示是否符合預期。
精確度、限制與實務建議
- 若重設後反而變成橫躺，代表是內容本身旋轉而非中繼資料——請用 PDF 旋轉工具實際轉正。
- 合併多來源文件前先重設；旋轉旗標不一致，是卷宗看起來怪怪的常見原因。
- 旋轉中繼資料與內容方向是兩回事，這正是同一頁在不同軟體中一個對、一個錯的原因。
- 文件在不同檢視器中表現不一致時，請先重設：從零開始，之後套用的任何旋轉才可預測。
常見問題
旋轉中繼資料是做什麼的？
它告訴檢視器要把頁面轉多少角度顯示，而不改變底層內容。
我的頁面還是橫的，為什麼？
那是內容真的被旋轉了。重設旗標救不了，請改用旋轉工具轉動頁面。
重設會影響頁面內容嗎？
不會，只改旋轉屬性，文字、圖片與版面都不受影響。
會影響列印嗎？
印表機會依循旋轉屬性，因此原本印成橫躺的檔案，旗標正確後應該就會直立輸出。
本站相關工具
以上步驟全部在這個頁面內完成，重設 PDF 頁面旋轉 不需要註冊、不上傳檔案、也不經過伺服器，關閉分頁後不會留下任何資料。