Images and scanned documents
OCR API
Use the same extraction endpoint for OCR. Supply a public image or scanned PDF URL and receive the recognized text in the synchronous JSON response.
Turn scans and images into searchable text
OCR is needed when a PDF page or image contains pixels rather than selectable text. This guide fits scanned archives, photographed paperwork, screenshots, and image-based PDFs that must become searchable or available to downstream software.
gettxt.ai returns the recognized content as text or Markdown. It is intended for content extraction; it does not return invoice fields, bounding boxes, or a document-specific JSON schema.
Request
Send a POST request to https://gettxt.ai/api/extract/. Authenticate with the x-api-key header. documentUris is required and accepts 1–10 directly accessible URLs.
{
"documentUris": [
"https://example.com/scanned-invoice.png"
],
"outputFormat": "text"
}- documentUris (required)
- One to ten public URLs. Supported file types can be mixed in one request.
- summarize and translate (optional)
- Set summarize to true and/or provide a language code such as de or es for translate.
Examples
cURL
curl -X POST "https://gettxt.ai/api/extract/" \
-H "Content-Type: application/json" \
-H "x-api-key: YOUR_API_KEY" \
-d '{
"documentUris": [
"https://example.com/scanned-invoice.png"
],
"outputFormat": "text"
}'Python
import requests
response = requests.post(
"https://gettxt.ai/api/extract/",
headers={"x-api-key": "YOUR_API_KEY"},
json={
"documentUris": [
"https://example.com/scanned-invoice.png"
],
"outputFormat": "text"
}
)
response.raise_for_status()
print(response.json()["documents"][0]["extractedText"])Node.js
const response = await fetch("https://gettxt.ai/api/extract/", {
method: "POST",
headers: {
"Content-Type": "application/json",
"x-api-key": "YOUR_API_KEY"
},
body: JSON.stringify({
"documentUris": [
"https://example.com/scanned-invoice.png"
],
"outputFormat": "text"
})
});
if (!response.ok) throw new Error(`Extraction failed: ${response.status}`);
const result = await response.json();
console.log(result.documents[0].extractedText);Synchronous response
Processing completes within the HTTP request. A successful JSON response includes combined content, credit totals, word counts, and a result for each submitted URL.
{
"creditsUsed": 1,
"creditsRemaining": 99,
"totalWordCount": 500,
"all_text": "Extracted content from all documents...",
"documents": [
{
"documentUri": "https://example.com/scanned-invoice.png",
"status": "succeeded",
"wordCount": 500,
"extractedText": "Extracted text content..."
}
]
}Errors
- 400: Invalid, empty, inaccessible, oversized, or unsupported input.
- 401: Missing or invalid API key.
- 403: Insufficient credits or access denied.
- 413: File exceeds the service limit.
- 429: Too many requests; retry later.
- 500/503/504: Processing, service, or timeout failure.
See the API documentation for the full request and error reference.
Supported formats
Documents
PDF, DOCX, XLSX, PPTX, HTML, EPUB
Images
JPG, JPEG, PNG, BMP, TIFF, HEIF
Audio
MP3, MPGA, M4A, WAV
Video
MP4, AVI, MKV, MOV, FLV, WMV, MPEG, 3GP, WEBM, MTS, M2TS, TS