Adobe PDF Services / PDF Extract API vs Amazon Textract

Adobe PDF Services / PDF Extract API

Public OpenAPI 3.0.1 spec covering Extract, PDF to Markdown and 20 other operations. No published paid price, paid use goes through sales.

Amazon Textract

IAM policies limit a credential to single operations, CloudTrail logs every call, and page prices start at $1.50 per 1,000 in US East. Multipage files need S3 and an asynchronous job. Text detection covers six languages. Under the AWS Service Terms AWS may store and use documents to improve the service unless an AI services opt-out policy is set.

Adobe PDF Services / PDF Extract API

1. Cache the access token and reuse it until it expires
2. Budget 1 Document Transaction per 5 pages for Extract and PDF to Markdown, so 500 free transactions cover about 2,500 pages
3. Pass notifiers with a callback URL instead of polling the job status
4. Use pdf-services-ew1.adobe.io when documents must stay in the EU
5. Check /operation/pdfproperties first, since copy-protected PDFs fail Extract with DISQUALIFIED_PERMISSIONS

Amazon Textract

1. Sign with SigV4 for service textract at textract.<region>.amazonaws.com, or call aws textract detect-document-text. The AWS CLI can't send image bytes, so reference an S3 object
2. Use StartDocumentTextDetection or StartDocumentAnalysis for any PDF or TIFF of more than one page, pass a ClientRequestToken, then page Get calls with NextToken (1,000 blocks at most each)
3. Fetch results within 7 days of starting a job, or set OutputConfig to write them to your own S3 bucket
4. Request only the FeatureTypes you need. Forms cost $50 per 1,000 pages against $15 for tables or queries in US East
5. Back off on ProvisionedThroughputExceededException (HTTP 400) and ThrottlingException (HTTP 500). Neither carries Retry-After, and default quotas are 1 call a second in most Regions
6. Set the AI services opt-out policy on the AWS organisation before sending customer documents