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What each service accepts and how its API works
Both services host HTML-to-PDF conversion and can work from a webpage or HTML. Their authentication and request formats differ, which can make an existing integration or local asset workflow the deciding factor.
| Detail | Html2Pdf.app | PDFCrowd |
|---|---|---|
| Endpoint and request | POST https://api.html2pdf.app/v1/generate; JSON request documented. |
https://api.pdfcrowd.com/convert/24.04/; versioned HTTP API using form-encoded fields. |
| Authentication | X-API-Key header. |
HTTP Basic authentication with account username and API key. |
| Input | Public URL or raw HTML. | Reachable URL, HTML string in text, or uploaded HTML file/archive. |
| Successful response | PDF bytes for a normal request. | PDF bytes. |
| Asynchronous option | Documented callBackUrl workflow; callback payload includes a base64-encoded PDF. |
Not established in the documentation cited here; check the current API documentation if asynchronous conversion is required. |
Html2Pdf.app describes rendering with headless Chromium and notes that CSS media selection, available fonts and resources, and JavaScript load timing affect the result. PDFCrowd documents controls for JavaScript and readiness, viewport behavior, and remote resources. These are implementation details to validate against your own pages, not evidence that either service will render a given site better.
Rendering and output features
Html2Pdf.app
Its documentation describes page and output customization, including page settings and media selection, plus AES PDF encryption. A user password enables 128-bit AES encryption, and permissions can be configured for actions such as printing, copying, modifying, filling forms, and assembling pages. The browser converter also exposes page format, orientation, margins, scale, media type, wait timing, and header/footer options. The vendor presents that no-key converter for interactive testing and directs automated or production work to its API.
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- 1 ream (500 sheets) of 8.5 x 11 white copier and printer paper for home or office use
- Multipurpose letter size copy paper works with laser/inkjet printers, copiers and fax machines
- Smooth 20lb weight paper for consistent ink and toner distribution; dries quickly and resists paper jams
- Bright white paper (92 GE; 104 Euro) offers great contrast for crisp printing and vivid color
- Virgin copy paper providing professional quality results; acid-free to prevent yellowing
PDFCrowd
Its API product page lists page size, orientation and margins; page breaks; headers, footers and page numbers; print CSS and custom CSS; JavaScript and readiness controls; viewport behavior; remote fonts and images; protected content; watermarks; password protection; PDF/A; and tagged PDF output. Treat these as documented capabilities to verify against your specific requirements, not a guarantee of identical behavior for every input.
PDFCrowd also lists separate offerings and integrations, including WebSave for visitor-triggered saving, WordPress, Zapier, Make, invoice generation from structured data, and an online converter. Those may matter if your trigger is a visitor action, an automation platform, or structured invoice data rather than a backend API call.
Rank #2
- HP Papers is sourced from renewable forest resources and has achieved production with 0% deforestation in North America. Each ream is wrapped in a polyurethane coated paper wrapper to protect the cut sheets from moisture damage
- Sheet size – 8.5 x 11; Thickness – 20 pounds; Brightness – 92 bright white
- HP Copy&Print20 20 pounds printer paper is Forest Stewardship Council (FSC) certified and contributes toward satisfying credit MR1 under LEED (Leadership in Energy and Environmental Design)
- All HP Papers provide premium performance on HP equipment, as well as on all other printer and copier equipment; 100% satisfaction guaranteed; ColorLok technology provides more vivid colors, bolder blacks and faster drying
- Superior quality, reliability, and dependability for high-volume printing at home, at school and in the office; HP Copy&Print20 print and copy paper prevents yellowing over time to ensure a long-lasting appearance for added archival quality
Limits, credits, and published prices
The vendors’ published pricing pages were accessed on October 3, 2026. Prices below are listed monthly amounts; taxes, regional checkout differences, and annual-billing terms are not inferred. Confirm the current amount, billing period, eligibility, and limits at checkout.
| Service and plan | Listed monthly price | Credits | Other listed limits |
|---|---|---|---|
| Html2Pdf.app Free | $0 | 100/month | One parallel conversion; output up to 1 MB. |
| Html2Pdf.app Startup | $9 | 1,000 | Three parallel conversions; paid plans list unlimited PDF size. |
| Html2Pdf.app Standard | $25 | 5,000 | Ten parallel conversions; paid plans list unlimited PDF size. |
| Html2Pdf.app Scale | $39 | 10,000 | Twenty parallel conversions; paid plans list unlimited PDF size. |
| PDFCrowd Nano | $1 | 10 | Tier-specific rate, concurrency, and maximum JavaScript-delay values are listed by the vendor. |
| PDFCrowd Micro | $11 | 200 | Tier-specific rate, concurrency, and maximum JavaScript-delay values are listed by the vendor. |
| PDFCrowd Small | $23 | 1,000 | Tier-specific rate, concurrency, and maximum JavaScript-delay values are listed by the vendor. |
| PDFCrowd Medium | $35 | 5,000 | Tier-specific rate, concurrency, and maximum JavaScript-delay values are listed by the vendor. |
| PDFCrowd Large | $61 | 10,000 | Tier-specific rate, concurrency, and maximum JavaScript-delay values are listed by the vendor. |
| PDFCrowd Ultimate | $106 | 20,000 | Tier-specific rate, concurrency, and maximum JavaScript-delay values are listed by the vendor. |
Html2Pdf.app says one credit covers each 5 MB chunk of generated PDF and credits reset on the first day of each month. PDFCrowd says one credit covers 0.5 MB of output; its credits reset on the billing date and unused credits do not roll over. At the stated unit rates, one Html2Pdf.app credit corresponds to ten times as much output as one PDFCrowd credit. That does not by itself tell you which plan costs less: calculate against realistic output sizes and the vendors’ chunk or size-band rules.
Rank #3
- 3 ream case (1,500 sheets) of 8.5 x 11 white copier and printer paper for home or office use
- Multipurpose letter size copy paper works with laser/inkjet printers, copiers and fax machines
- Smooth 20lb weight paper for consistent ink and toner distribution; dries quickly and resists paper jams
- Bright white paper (92 GE; 104 Euro) offers great contrast for crisp printing and vivid color
- Virgin copy paper providing professional quality results; acid-free to prevent yellowing
PDFCrowd’s pricing page lists a separate trial of 100 test API credits valid for one month. Do not confuse that trial with a recurring monthly plan allowance.
Limits that measure different things
- Html2Pdf.app’s free plan lists a 1 MB maximum output PDF, while its paid plans list unlimited PDF size.
- PDFCrowd’s HTTP guide states a maximum upload size of 300 MB and a 60-second server-side processing limit. The upload limit is not a stated maximum output PDF size.
- PDFCrowd says request rate and concurrency depend on the license. Its guide identifies HTTP
429as rate limiting and430as the concurrent-request limit.
Which one fits your workload?
Consider Html2Pdf.app when
- You prefer its documented JSON request style and
X-API-Keyauthentication. - You need the documented callback workflow for asynchronous conversions.
- The free allowance, one-parallel-conversion limit, and 1 MB output cap suit an initial test or small workload.
- Its stated 5 MB-per-credit output model works better for your typical document sizes.
Consider PDFCrowd when
- Your integration needs to submit an HTML file or archive as well as a URL or HTML string.
- You need a documented output requirement such as PDF/A or tagged PDF.
- Its separate one-month API trial or a listed plan fits your expected usage and burst capacity.
- You need to account for its documented upload and processing limits.
Before switching or selecting a plan, run the same representative inputs through the service or services you are considering. Include pages with custom fonts, charts, protected resources, JavaScript-driven content, and difficult page breaks. Compare the resulting PDF against your requirements, and track latency, errors, and output size under your expected concurrency. Published feature lists are not a substitute for that validation.
Rank #4
- 5 ream case (2,500 sheets) of 8.5 x 11 white copier and printer paper for home or office use
- Multipurpose letter size copy paper works with laser/inkjet printers, copiers and fax machines
- Smooth 20lb weight paper for consistent ink and toner distribution; dries quickly and resists paper jams
- Bright white paper (92 GE; 104 Euro) offers great contrast for crisp printing and vivid color
- Virgin copy paper providing professional quality results; acid-free to prevent yellowing
Data handling and operational considerations
Html2Pdf.app says generated PDFs are processed temporarily rather than permanently stored. It also says raw submitted HTML/text is not stored in conversion logs, although selected request metadata and a submitted source URL may be retained. These are vendor statements, not independently audited guarantees; review current terms and data-handling documentation before sending sensitive content.
For PDFCrowd, the cited HTTP guide sets a 60-second server-side processing cutoff and describes rate and concurrency limits as license-dependent. Plan for those limits in your retry and job-queue design; do not assume a large monthly credit allocation guarantees a particular burst rate.
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- Made in USA: HP Papers is sourced from renewable forest resources and has achieved production with 0% deforestation in North America.
- Optimized for HP technology: All HP Papers provide premium performance on HP equipment, as well as on all other printer and copier equipment.
- Perfect everyday office paper: Superior quality, reliability, and dependability for high-volume printing at home, at school and in the office. Perfect for everyday black and white printing.
- Certified sustainable: HP Office20 20lb printer paper is Forest Stewardship Council (FSC) certified and contributes toward satisfying credit MR1 under LEED (Leadership in Energy and Environmental Design).
- ColorLok technology printing paper: ColorLok technology provides more vivid colors, bolder blacks and faster drying.
ScreenshotNeo as an alternative for screenshot output
If your actual requirement is a webpage screenshot rather than a PDF, try ScreenshotNeo first: it returns PNG, JPEG, WebP, or PDF and bills only clean shots, not bot checks, blank pages, timeouts, failed loads, or cache hits. Its API is a screenshot service, so choose it for capture rather than assuming it replaces either vendor’s specialized PDF workflow.
For example, the following cURL request captures a webpage as WebP; see the ScreenshotNeo API documentation for options:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo can accept cookie and consent banners and remove more than 60 known consent platforms, newsletter popups, and chat widgets before capture; each cleanup step can be disabled. It also provides an MCP server with take_screenshot, get_page_info, and capture_pdf tools for AI agents. The Free plan includes 1,000 shots per month with no card; paid plans start at $5 for 3,000 shots. Sign up for ScreenshotNeo’s free plan.
Frequently Asked Questions
Can either service take raw HTML instead of a live URL?
Yes. Html2Pdf.app documents raw HTML input; PDFCrowd documents an HTML string in the text field and uploaded HTML files or archives.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteDoes a higher credit count mean more PDFs?
Not necessarily. The services count output size differently, and the PDF size distribution of your documents determines how many conversions an allowance covers.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
