OmniDocHow to extract text content from documents on mobile phones
To extract document text on your mobile phone, first distinguish whether it is an electronic version of the text that can be selected, or a scan or photo that needs to be recognized. The electronic version can be copied directly, and the scanned copy can be downloaded and copied after processing by opening the OmniDoc web version in the mobile browser. The article gives judgment methods, operating steps and check points.
Key points of this article
- Long press a piece of text, and a selection box will appear indicating that it is an electronic version and can be copied directly.
- If you cannot select scanned documents or photos with Chinese characters, you need to do text recognition first and then copy them.
- Open omnidoc.top in the mobile browser to upload the file, download the result and then copy the text
- Check the numbers, proper nouns and tables item by item after copying. There may be errors in recognition and translation.
- When choosing a free tool, look for file size limits, watermarks and privacy terms first
The tutor has sent an English paper and you want to excerpt a few paragraphs of the original text for citation; or you have taken a photo of a contract and want to copy one of the clauses into the chat box. Many people subconsciously look for an "extraction tool", but the tutorials they see on computers often don't work on mobile phones. The screen is small, the files are in the photo album, and the upload and download paths are different.
This article specifically talks about how to use a mobile phone to extract text from a document. First, determine the file type and then choose the corresponding method. After reading, you will know which files can be copied by long pressing in the mobile browser, which scanned documents need to be processed using the OmniDoc web version in the mobile browser, and how to check after copying to avoid missing words, serialization or numerical errors.
The following mainly focuses on the mobile browser and OmniDoc web version, and the desktop version will only be mentioned when necessary.
How to extract text from documents using mobile phone? One sentence conclusion
First determine whether the document is an electronic version: if you can select text, copy it directly; only scans or photos that cannot be selected require text recognition first.
| your situation | Recommended practices | reason |
|---|---|---|
| Electronic version of PDF or Word, you can press and hold to select text | Select and copy directly in the mobile phone reader | The text itself can be read, no recognition is required, and there are fewer errors. |
| Scanned PDF or photo taken, Chinese text cannot be selected | Open omnidoc.top in the mobile browser to upload, download the results and copy | The text in the scanned document is an image and needs to be recognized through text recognition first. |
| Only the translation is needed, not the original text | For the web version, select "Translation Only" output | The output format directly corresponds to the needs, so there is no need to choose among them. |
| Want to open a Word file in a browser and copy the content | Open the app.unidoc.top web page editor in your mobile browser | Supports Word compatible editing, you can select text on the page |
| The file needs extensive editing or needs to be exported into tables or slides. | Install the desktop client on your computer | The desktop version has PDF editor, OCR and export functions to Word, Excel and PowerPoint, but it is difficult to operate on a small screen. |
Before you start: Confirm these points first
- File type. Use your finger to long press a piece of text in the document to see if a selection box appears. If it can be selected, it means it is an electronic version; if it cannot be selected, it is probably a scan or photo. The two are processed in different ways, so do not mix them.
- File size. Uploading large files on mobile phones is more likely to be interrupted. When the file is too large, you can keep only the required pages before uploading to reduce the risk of waiting and failure.
- Network environment. Both uploading and downloading require an Internet connection. It takes longer to process large files under a weak network, so it is recommended to operate in a Wi-Fi environment.
- Text use. Do you want to quote the original text, or just the translation? This determines whether to choose "Translation Only" or "Bilingual Control" when outputting. In bilingual comparison, the original text and the translated text are side by side. When copying, it is necessary to distinguish which side is the original text.
- Whether the file is sensitive. Before uploading documents such as contracts, medical records, certificates, etc., please confirm whether they must be processed online. If it can be copied in the local reader, there is no need to upload it.
Steps to extract text from scanned documents using OmniDoc web version in mobile browser
- Enter omnidoc.top in the address bar of the mobile browser to open the web version.
- Select the file in the upload location of the page and find the PDF, Word or picture you want to process from the phone folder or photo album.
- Wait for the upload to complete. Do not switch to other applications or lock the screen during this period to avoid interruption of the upload.
- Select the output format. If you need a translation, select "Translation Only"; if you need to retain the original text, select "Bilingual Verification". The original text and translation will be kept side by side.
- Wait for the processing to be completed and download the result file to your mobile phone.
- Use the file application or browser on your phone to open the downloaded file and confirm that the content has been generated and there are no missing pages.
- Long press the required paragraph, select it, copy it, and paste it into the memo or chat box.
If you only want the original text, select bilingual comparison and copy the original side; if it is an electronic version of the file, you can skip the web version and directly press and hold to copy in the reader.
Check each item after completion
After getting the copied text, do not use it directly. Check the items below first.
| Check items | How to see | What to do if there is a problem |
|---|---|---|
| Is the content complete? | Compare the number of pages and the last page of the original text to see if there are any missing paragraphs or pages. | Go back to the original file, reprocess it in segments, or finish it on the computer instead. |
| Number, date, amount | Compare the originals one by one, focusing on the decimal point, unit and thousandth | Manual correction shall prevail with the original. |
| Proper nouns and person names | Check whether the key terms are consistent in the full text | Unified replacement; please read through and proofread the important documents manually |
| Tables and formulas | See if the rows are aligned and whether the formula symbols are missing. | The form can be checked after exporting Excel on the computer side. The formula shall be based on the original. |
| Garbled or blank | A box, question mark, or entire blank appears | Check whether the original is clear, change to a clearer scan or flat photo and try again. |
It should be noted that errors may occur in text recognition and machine translation. When it comes to the terms of the contract, medical information or academic citations, be sure to check it against the original before using it.
# frequently asked questions (FAQ)
1. If the text can be selected on the mobile phone, do you still need to use the web version?
I don't need it. The electronic version that can be selected is easier to copy by long pressing directly in the reader. The web version is mainly used in situations where Chinese characters are not selected, such as scanned pieces and photos.
2. How to choose free extraction tools?
You can look at four points when choosing: file size limit, whether the exported file is watermarked, whether the file uploaded in the privacy policy will be retained, typesetting and whether the form can be retained. Don't just see if you can use it.
3. Can the photos taken be processed directly on the web version?
You can upload picture files. When taking pictures, try to put the paper flat, the light is uniform, the text is clear, there is no shadow or reflection, so that the recognition result will be more reliable.
4. The line breaks of the copied text are very messy, what should I do?
This is a common situation, especially when copying from PDF. You can first paste into the mobile phone memo, delete the redundant line breaks, and then paste to the target location. When you need to retain the original layout, it is recommended to deal with it on the computer side or in the UniDoc web page editor.
# Summary
The key to extracting text from a document on a mobile phone is to distinguish between the electronic version and the scanned parts: those that can be selected can be copied directly by a long press, and those that are not selected can be downloaded and then copied after the mobile browser opens the omnidoc.top for processing. Document extraction text how to operate the phone, the core is these three steps. After copying, check the numbers, tables and proper nouns item by item before you can rest assured to use them.
