Input JSON
{
"file_base64": "PDF file, 1.6 KB, base64 in the real request"
}Attest tools · PDF readability check
Find image-only PDF pages
Inspect a mixed PDF containing one text page and one image-only page, without performing OCR.
Captured output JSON
{
"profile": "general",
"pages": 2,
"findings": [
{
"id": "scanned_pages",
"level": "problem",
"message": "1 of 2 page(s) analysed carry a picture and almost no selectable text. Whatever is written on those pages is invisible to software until they are run through optical character recognition."
},
{
"id": "fonts_not_embedded",
"level": "warning",
"message": "1 of 1 font(s) are not carried inside the file, or could not be read from it, so a reader substitutes a local font. Substitution changes line breaks and, with some encodings, the characters that come out of a copy-and-paste."
},
{
"id": "reading_order_ok",
"level": "ok",
"message": "The text is drawn in the order it is read on the page."
},
{
"id": "untagged_pdf",
"level": "warning",
"message": "The file carries no tag tree, so software has to infer headings, lists and reading order from where the marks sit on the page."
},
{
"id": "no_language_metadata",
"level": "warning",
"message": "The file does not declare a language. Screen readers and some text processors fall back to a default, which affects pronunciation and hyphenation."
}
],
"stats": {
"document": {
"pdf_version": "1.7",
"page_count": 2,
"pages_analyzed": 2,
"pages_failed": 0,
"analysis_truncated": null,
"words": 2,
"characters": 17,
"text_items": 1,
"text_layer": "partial",
"text_selectable": true,
"average_text_coverage": 0.003,
"pages_without_text": 1,
"image_only_pages": 1,
"images": 1,
"image_streams": 2,
"images_over_pixel_cap": 0,
"largest_image_pixels": 2048,
"streams": 6,
"largest_stream_decompressed_bytes": 116,
"analyzed_decompressed_bytes": 414,
"unmeasured_streams": 0,
"fonts": [
{
"name": "Helvetica",
"embedded": false,
"type3": false
}
],
"fonts_embedded": 0,
"fonts_not_embedded": 1,
"encrypted": false,
"encryption_filter": null,
"permissions": null,
"acroform": false,
"xfa": false,
"signatures": false,
"linearized": false,
"tagged": false,
"language": null,
"pdfa_claim": {
"claimed": false,
"part": null,
"conformance": null
},
"pdfua_claim": {
"claimed": false,
"part": null
},
"links": {
"annotations": 0,
"text_urls": 0
},
"multi_column_pages": 0,
"table_pages": 0,
"rotated_text_items": 0,
"page_sizes": 1
},
"pages": [
{
"number": 1,
"width_pt": 595.3,
"height_pt": 841.9,
"rotation": 0,
"characters": 17,
"words": 2,
"lines": 1,
"text_items": 1,
"text_coverage": 0.006,
"columns": 1,
"column_gutter_pt": 0,
"images": 0,
"image_area_ratio": 0,
"image_only": false,
"link_annotations": 0,
"reading_order": {
"transitions": 0,
"backward_jumps": 0,
"column_switches": 0,
"sane": true
},
"tables": {
"horizontal_rules": 0,
"vertical_rules": 0,
"ruled_grid": false,
"aligned_rows": 0,
"aligned_columns": 0,
"likely": false
},
"parse_failed": false
},
{
"number": 2,
"width_pt": 595.3,
"height_pt": 841.9,
"rotation": 0,
"characters": 0,
"words": 0,
"lines": 0,
"text_items": 0,
"text_coverage": 0,
"columns": 1,
"column_gutter_pt": 0,
"images": 1,
"image_area_ratio": 1,
"image_only": true,
"link_annotations": 0,
"reading_order": {
"transitions": 0,
"backward_jumps": 0,
"column_switches": 0,
"sane": true
},
"tables": {
"horizontal_rules": 0,
"vertical_rules": 0,
"ruled_grid": false,
"aligned_rows": 0,
"aligned_columns": 0,
"likely": false
},
"parse_failed": false
}
]
},
"limits": {
"inline_file_bytes": 3145728,
"fetched_file_bytes": 8388608,
"pages_analyzed": 30,
"image_pixels": 40000000,
"stream_decompressed_bytes": 4194304,
"analyzed_decompressed_bytes": 31457280,
"decompressed_budget_applies_to": "the largest single stream, and the heaviest 30 streams together",
"profile_scan_characters": 200000
},
"sources": [
{
"name": "Mozilla pdf.js (npm pdfjs-dist 6.3.289), Apache License 2.0",
"url": "https://github.com/mozilla/pdf.js",
"used_for": "parsing the file: text runs and their positions, fonts, images, paths, annotations, metadata and permission flags"
},
{
"name": "ISO 32000-1:2008, Document management — Portable Document Format — Part 1: PDF 1.7",
"url": "https://www.iso.org/standard/51502.html",
"used_for": "the file-structure terms used in this report: header, encryption dictionary, permission flags, XFA forms, tagged structure tree"
},
{
"name": "ISO 19005 (PDF/A) identification schema, read from the file's own XMP metadata",
"url": "https://www.pdfa.org/resource/iso-19005-pdfa/",
"used_for": "pdfa_claim — reported as the file's own claim, not as a validation result"
}
],
"notice": "General guidance about how automated readers see this file. Attest does not speak for any specific applicant-tracking system.",
"checked_at": "2026-10-20T20:47:49.587Z"
}API call
curl -s -X POST https://getattest.com.au/api/v1/pdf/inspect \
-H "authorization: Bearer $ATTEST_API_KEY" \
-H "content-type: application/json" \
--data-binary @request.jsonRun this call with your own bearer key. Save the complete input as request.json, replacing file descriptions with your own base64 file content and any truncated text with the full text. Issue an API key.
About this example
The input was validated and run locally through the registered service. The output above is a display preview of the captured service result. File bytes are described instead of printed, and strings longer than 400 characters are truncated; the HTTP API also adds call_id, credits_charged and credits_remaining. Timestamps and generated identifiers will vary.
Source: apps/api/svc/pdf_inspect.mjs