A PDF Generator API alternative for generating and sending PDFs without building an integration
Both products turn data into PDFs. They are sold to different buyers, and the clearest place to see it is what each one counts as one unit.
No credit card · 20 free documents a month
Their published rule: 1–5 pages is one credit, 6–10 is two, 11–15 is three. A quota of 1,000 is not a quota of 1,000 documents unless every document is short.
In one sentence
PDF Generator API is infrastructure you put inside your own product: an endpoint, an embeddable template editor and an embeddable viewer, so that your customers can make and sign documents without leaving your application.
Papely is the application. Your team uploads the PDF it already has, brings a spreadsheet, and each person on that spreadsheet receives their own document by email — with no service in between to wire up, host or monitor.
So the question is not which one generates a better PDF. It is whether the documents are for your customers to make, or for your team to send.
Where the two differ, point by point
Facts, not scores. Every line about PDF Generator API comes from their public site or documentation on the date stamped underneath, and every line about Papely describes what it does today.
| What you are comparing | Papely | PDF Generator API |
|---|---|---|
| Where the document comes from | A PDF you upload. Fields go on top and the original stays as it is. | A template you build in their editor — and since 2025 you can also import an existing PDF, which they scan for fields. |
| Who puts it in the recipient's inbox | Papely does, in the same run. You map the email column once and each document goes to its person. | Not part of generating it. The document comes back on the API call or a callback, and the sending is your system's job or your automation's — Make, n8n, Zapier. |
| What you know afterwards | Sent, delivered, bounced and downloaded, recipient by recipient, on a screen. | Their callback tells your system a document was generated. What happened to the email belongs to whoever sent it. |
| The unit that gets counted | One document, whether it runs to one page or forty. | One credit per block of up to five pages, so a long document spends several. |
| Where you start | A free plan that does not expire: 20 documents a month, no card. | A 14-day trial and a sandbox account. Their site does not publish a free plan that lasts. |
| How the price is published | Monthly or yearly. Pro is 19 € a month, or 190 € a year, for 1,000 documents a month. | As a yearly figure. The cheapest, Creator, is 80 € a year for 50 credits a month. |
| Editor and viewer inside your own product | No. Papely is the application your team works in, not a component you embed. | Yes, and it is a large part of what they sell: an embeddable template editor and a document viewer that covers review and signing. |
| Arithmetic inside the document | None. A table cell prints the value your spreadsheet already carries. | Their expression language computes values in the template. |
Which one fits your job
PDF Generator API is the better answer when
- Your own customers are the ones making documents, each inside their own workspace, and the editor has to live in your product.
- The document has to work something out — a subtotal, a tax, a line total — instead of printing a number you already have.
- Somebody has to read and sign the document on screen, with the audit trail that goes with it.
- You are a developer building this into a system that already handles its own email, and a generation endpoint is exactly the piece you are missing.
Papely is the better answer when
- The PDF already exists and somebody in your organisation has already approved how it looks.
- Every document belongs to a person, and that person has to receive it.
- Nobody on the team is going to write the sending, the retries and the tracking, because nobody on the team writes code.
- You want to answer “did it reach them, did they download it” without having to ask them.
The two price lists, and who each one is written for
Set side by side, the lists describe their buyers more plainly than any feature does. Read them down to the last line.
- How you pay
- Monthly or yearly
- Stop paying the month you stop sending.
- Where you start
- Free · 20 documents a month
- A plan, not a trial. No card.
- Paid plan
- Pro · 19 € a month
- Or 190 € a year, for 1,000 documents a month.
- The unit
- One document
- One page or forty, it counts as one.
- What the plan meters
- Documents a month
- One team, one workspace, and no tier changes that.
- How you pay
- Yearly
- Their pricing page publishes the annual figure.
- Where you start
- 14-day trial · sandbox
- No free plan that lasts is published.
- Cheapest plan
- Creator · 80 € a year
- 50 credits a month, 5 templates, 1 workspace.
- The unit
- One credit per 5 pages
- 1–5 pages = 1 · 6–10 = 2 · 11–15 = 3.
- What the plan meters
- Credits, templates, workspaces
- Workspaces run 1 → 10 → 100 → unlimited as you move up.
Read the last line of each list
A workspace is a separate tenant with its own templates. Metering them from one to a hundred is a price written for a company whose own customers make documents inside its product — every client account needs one. A team sending its own documents needs a single workspace, and needs it for as long as it keeps sending.
This is not an argument about being cheaper
For low volumes theirs costs less: Creator is 80 € a year against 190 € for Papely Pro, and above 1,000 documents a month their list keeps climbing where Papely's continues with generation packs and a plan you have to talk about. What the two lists disagree about is what a euro buys — theirs buys the generating, and the sending stays with you; Papely's buys the generating, the sending and the report on both.
The part you would otherwise build
Between “the PDF exists” and “the right person has it” sits an amount of work that no generation endpoint covers: an email service, a template per language, an address per row, bounces, retries, and somewhere to look when someone says it never arrived. In Papely that stretch is the same operation as generating.
Each recipient gets a link to their own document rather than an attachment, so size stops mattering and corporate filters have less to quarantine. The link is also what makes the tracking possible — an attachment leaves no trace once it is sent — and four states come back per recipient: sent, delivered, bounced and downloaded.
There is no fifth state for opens. Papely does not record whether an email was opened, on purpose: scanners fetch images before any person reads anything, so the signal would tell you less than it appears to.
Nearby
The same machinery, approached from somewhere else:
Papely compared with PDFMonkeyGenerating a PDF per spreadsheet rowSending a personalized PDF by emailAPI reference