OmniDoc# if I only turn one page, how can I save it? Conclusion in a word
Explain clearly how to rotate only a certain page in a PDF, leaving the rest of the pages unchanged, distinguish between temporary viewing rotation by the reader and page rotation when written to the file, and provide operating steps and page-by-page verification methods.
#How to rotate only one page of PDF
Key points of this article
- Temporary rotation in the reader usually only affects the current display. To save the page orientation in the file, you need to perform page rotation and export a new file.
- Before rotating, use the mouse to try to select the text to determine whether it is an electronic version or a scanned copy, and then decide whether OCR is needed later.
- Only select the target page for rotation, do not select the entire document, otherwise other pages will also change direction.
- After rotating, look through the pages one by one, especially the adjacent pages before and after the target page, and make sure that the direction and number of pages have not changed.
- When saving, save as a new file and keep the original file. If the orientation is wrong, you can reprocess it from the original file.
We often encounter this situation when using PDF: in a 30-page paper, only page 7 is a horizontal table; or in a 12-page contract, one of the pages is turned upside down when scanning, and the remaining pages are all upright. At this time, if the entire document is rotated uniformly, other pages will become crooked, which will be more troublesome.
This article talks about how to rotate a PDF page independently while ensuring that other pages maintain their original orientation. If you are searching for "How to rotate one page of a pdf file", you can also follow the ideas here. After reading, you will first understand the difference between "transfer while watching" and "transfer while saving in a file", then use the desktop client to transfer only the target page, and finally check the results page by page.
The following method is suitable for electronic version of PDF and scanning version of PDF, the operation object is a separate page, does not involve the unified rotation of the whole document.
If you want a certain page to be truly upright in the file, you should use page-level rotation and export a new file; if you just want to see it upright temporarily, you can use the viewer's view rotation, but it is usually not retained after closing.
| Your situation. | Recommended practice | Reason |
|---|---|---|
| Just take a look at it for yourself, and you don't need to send it to others. | Use the view rotation of the reader | Fast operation without changing the original file |
| Need to send, print or archive, the page should be positive all the time | Export a new file using the page rotation of the OmniDoc desktop client | Rotate to write to the file, leaving the other pages as they are |
| A page in the scan was placed upside down | Also rotate the page and OCR when the text needs to be searched. | The scanned page is an image, and the orientation will be fixed in the file after rotation. |
| Multiple pages in the same document have different directions | Rotate individually page by page, and check after each page is completed | Avoid affecting all pages in one operation |
# before you start: confirm these points first
- confirm whether the document is electronic or scanned. after opening PDF, try to select a paragraph of text with the mouse. If it can be selected, it is usually an electronic version; if it is not selected, the whole page can only be moved when the picture is moved, it is a scanned piece. This will affect whether you need OCR later, but not the rotation itself. - confirm which page you want to turn. the page number is subject to the page number displayed in the reader. For a document with a cover, section, or insert page, the page number and the internal serial number of the document may not be the same, so it is more safe to turn to the page and confirm again. - determine how many degrees you should turn. the top of the content is on the left, usually turning 90 degrees; the content is completely reversed, 180 degrees. If you want to read the horizontal table directly, it is usually 90 degrees. If you can't get the direction on time, you can try several angles in the reader before you start. - keep the original file. use a new file name when exporting, such as adding "_ revised version" after the original name. In this way, if the direction is wrong, you can reprocess it from the original file without having to worry about overwriting. - prepare the desktop client. * the OmniDoc desktop client supports Windows, macOS and Linux. The download address is download.omnidoc.top. The PDF editor includes functions such as page operations (insert, delete, rotate, sort, merge, split), etc.
Steps to rotate a single page in OmniDoc desktop client
- Open download.omnidoc.top to download and install the desktop client, and enter the PDF editing function after startup.
- Import the PDF files to be processed. When the file is large, wait until the page is fully loaded before proceeding to avoid mistaken selections.
- To enter the page operation, first locate the page that needs to be rotated in the page list or thumbnail. Note that only the target page is selected in this step, not the entire document.
- Select the rotation direction: 90 degrees clockwise or counterclockwise, or 180 degrees if the content is upside down.
- Confirm in the preview that the target page has been straightened, and then look at the adjacent pages before and after it to confirm that their orientation has not changed.
- After confirming that everything is correct, export or save it as a new file. The file name is distinguished from the original file, which remains unchanged.
# check item by item after completion
After getting the new file, do not send or replace the original file directly. It is recommended to check item by item according to the table.
| Check items | What do you think? | What if there's a problem? |
|---|---|---|
| Target page orientation | Open the new file in the reader to see if the title and text are correct | In the wrong direction, turn 90 or 180 degrees on the basis of the original file until it is correct. |
| Whether the adjacent pages have changed | Turn from page 1 to the last page and pay attention to the direction before and after the target page | If other pages also change, multiple pages are selected; go back to the original file and only select the target page to do it again. |
| Is the total number of pages consistent? | Compare the number of pages between the original file and the new file | If the number of pages is reduced, check whether it is deleted by mistake; do not replace the original file when the number of pages is incorrect. |
| Whether the content is complete or not | Spot check whether the forms, pictures and formulas are clear and complete | If there is any missing or abnormal, re-import the original file for processing, do not continue to change it on the exception version. |
| Whether the text is optional | For the electronic version, select a paragraph to confirm that it is still optional | When the text cannot be selected, check whether the page is mistaken for an image, and re-import the original file if necessary |
# frequently asked questions (FAQ)
1. The page is rotated in the reader, why is it sent to others or crooked?
The view rotation in the reader usually affects only the current display and does not write to the file. To get the page to be positive when someone else opens it, you need to rotate the page and export the new file.
2. Does rotating a page change the text content or page number?
Rotation only changes the orientation of the page, not the text. If the file contains a directory or bookmark, it is recommended to spot check several jumps after export to make sure there is no dislocation.
3. The scanning piece is crooked, do we have to do OCR before rotating it?
I don't need it. Rotation is an adjustment to the page orientation and has nothing to do with OCR. The function of OCR is to allow the text in the scanned page to be selected and searched, and can be rotated when needed. The results of OCR recognition should also be checked, especially numbers and technical terms.
4. Do not want to install software, can you use an online website to deal with it?
You can consider converting the PDF feature of the website or browser online, but first read the file size limit, whether to add a watermark, and the privacy instructions after the file is uploaded. Contracts, papers and other important documents, it is recommended to give priority to local processing.
5. How to judge whether to turn 90 degrees or 180 degrees?
Look at the orientation of the content of the page. When the title and text are placed vertically and horizontally on the left side of the page, they usually turn 90 degrees; if you look at the whole page upside down, you turn 180 degrees. When in doubt, first turn the preview, and then decide whether to continue.
# Summary
To rotate only one page in PDF, the key is to distinguish between temporary viewing and writing to the file, then select only the target page to rotate, and finally export to a new file. After completion, check the adjacent pages and the total number of pages page by page, confirm that it is correct and then replace or send.
