**Steps to replicate the issue** (include links if applicable):
* Find a index page on English Wikisource (for example, [[https://en.wikisource.org/wiki/Index:Local_Government_Act_1972_(UKPGA_1972-70_qp).pdf|this index for Local Government Act 1972]]) and open a page (e.g. [[https://en.wikisource.org/w/index.php?title=Page:Local_Government_Act_1972_(UKPGA_1972-70_qp).pdf/1&action=edit&redlink=1|page 1 of the Act]]).
* Select either Tesseract, Google or Transkribus OCR. for the selection
* Click "transcribe text" at the upper right-hand side corner.
**What happens?**:
* No text generated, and the following error messages popped out respectively:
** Tesseract: Error from the OCR tool: Image retrieval failed: HTTP/2 429 returned for <JPG link of the PDF page>
** Google: Error from the OCR tool: The Google service returned an error: We can not access the URL currently. Please download the content and pass it in.
** Transkribus: Error from the OCR tool: Error Code '500' :: Unable to complete request, try again!
* For some cases, the text was properly generated, but multiple clicks were needed.
**What should have happened instead?**:
OCR applications should have operated normally in one or two click, and the text in the source PDF file should have been generated normally.
**Other information** (browser name/version, screenshots, etc.):
* Might relate to T332125, T337495 and T296912.
* Mentioned on [[https://en.wikisource.org/wiki/Wikisource:Scriptorium/Help#Problems_with_Google_OCR|English Wikisource Scriptorium]]. Xover proposes that this may be caused by IP problem, and reports that European users are seriously affected.
* My IP is in Hong Kong.