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ManyLives KDP Interior PDF Checker
x402
ManyLives KDP Interior PDF Checker is a paid API for AI agents from api.manylives.me, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-17).
Validates a Kindle Direct Publishing (KDP) interior PDF against Amazon's print requirements, checking fonts, images, margins, page count, and file properties for a given trim size and paper type.
Price / call$0.004
Success—
StatusUnknown
How this service works
Pay-per-call tools for people building AI agents: live web search and page contents, point-in-time crypto market data and news for backtests (no lookahead), verifiable track records of 1,000 crypto strategies locked on the Base network, company profiles, quick AI and batch prices. Ask us to turn a public website into a JSON endpoint. Pay per call, no account, free trial.
Output
Returns a JSON object with: ok (boolean pass/fail), file metadata (page count, page size, bleed, encrypted), font analysis (Type3 fonts, not-embedded fonts), image analysis (pages with drawn images, low-DPI images), a problems array listing KDP guideline violations, a warnings array for non-blocking issues, and margins_to_keep with minimum outside and inside gutter measurements in inches.
Example use cases
Pre-upload KDP book interior check
“I'm about to upload my novel to KDP — can you check this PDF at https://mybookfiles.com/mynovel-interior.pdf for a 6x9 trim on bw_white paper and tell me if there's anything that will get it rejected?”
Cream paper formatting validation
“Can you validate my cookbook interior PDF at https://example.com/cookbook-interior.pdf for a 7x10 trim on bw_cream paper? I want to know about any font or image issues before I publish.”
Color book print preflight
“Run a preflight check on this PDF I'm uploading as base64 — it's a children's picture book for standard_color paper at 8.5x8.5 trim size. Let me know all the problems and warnings.”
Technical details
Endpoint
POSThttps://api.manylives.me/paid/pdf/kdp-interior-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to preflight a KDP print interior PDF before uploading to Amazon's self-publishing platform. It specifically checks against KDP's own guidelines (font embedding, DPI, page count minimums, margins) and supports all KDP paper types and trim sizes. Prefer this over generic PDF validators when the publishing target is Amazon KDP print-on-demand.
Side effects
- PDF URL is not publicly accessible or times out
- PDF exceeds 50 MB size limit
- Malformed or invalid PDF file
- Invalid trim size format (not width x height in inches)
- Unknown paper type value
- Base64-encoded PDF is corrupt or truncated
- Network error fetching the remote PDF
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | public https:// link to the interior PDF (up to 50 MB), or pdf_base64 |
| trim | string | width x height in inches, e.g. "6x9" or {width, height} |
| paper | string | bw_white (default), bw_cream, standard_color or premium_color |
| pdf_base64 | string | the PDF, base64 |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": false,
"file": {
"bleed": false,
"pages": 2,
"encrypted": false,
"page_size_in": "6x9"
},
"fonts": {
"type3": [],
"not_embedded": [
"Helvetica"
]
},
"images": {
"drawn_on_pages": 0,
"low_dpi_images": []
},
"problems": [
"2 pages is below the minimum of 24 for bw_white",
"fonts not embedded: Helvetica; the guidelines ask for all fonts to be embedded"
],
"warnings": [],
"margins_to_keep": {
"outside_min_in": 0.25,
"inside_gutter_min_in": 0.375
}
}
}Tags
x402
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