Convert PDF to AsciiDoc Online

Paste a PDF table below, edit it if you need to, and get AsciiDoc back. The conversion runs in your browser, so nothing is uploaded, there is no size limit and there is no signup.

From

From a page

The only part of this site that uses a server. The address is sent to it so the page can be fetched, because a browser is not allowed to fetch someone else's page itself. Your own files are never involved.

Nothing here is uploaded. The parsing happens on this page.

Edit

Paste or upload something above and it will appear here.

ToDataMarkupDocumentsCodeSchemasImages

Header rowDetect numbers

The output will appear here once there is a table to convert.

What PDF is

PDF describes a page: glyphs at coordinates, not rows and columns. A table in a PDF is a visual arrangement, not a data structure.

Reports, invoices, statements and anything sent to be read rather than processed.

What AsciiDoc is

AsciiDoc tables are delimited by |=== and take a cols attribute describing the columns.

Antora documentation sites, and technical writing teams that outgrew Markdown.

What changes when you convert PDF to AsciiDoc

Every character in a text-based PDF carries its position on the page. Characters sharing a baseline are one row. Columns are found from the vertical strips no character ever occupies, which is why extraction works cleanly on a document laid out with spacing and badly on one laid out with ruled lines. A header repeated at the top of each page is detected and dropped rather than landing in the middle of the data.

The header option is set so the first row renders as a header row rather than data.

What carries over from PDF to AsciiDoc

AsciiDoc can express everything PDF holds about a table, so this conversion is about shape rather than loss.

AsciiDoc marks its header cells differently from its data cells, so the first row is written with that marker.

This is the direction that recovers structure: PDF has no table in it to read, only an arrangement that looks like one, so the rows and columns are inferred rather than read.

A worked example

Three rows of staff data, with an identifier that has a leading zero, a value containing a comma, a value containing quotes and one blank cell. Those are the four places formats disagree, so they are the four places to look.

PDF in

id   name              role           started     hours
007  Halima Yusuf      Analyst, data  2024-03-15  38.5
012  Jonah "Jo" Pryce  Engineer       2025-11-02
104  Wei Chen          Manager        2023-06-30  40

AsciiDoc out

[cols="1,1,1,1,1",options="header"]
|===
| id | name | role | started | hours
| 007 | Halima Yusuf | Analyst, data | 2024-03-15 | 38.5
| 012 | Jonah "Jo" Pryce | Engineer | 2025-11-02 | 
| 104 | Wei Chen | Manager | 2023-06-30 | 40
|===

Questions

How do I convert PDF to AsciiDoc?

Paste your PDF into the box above or drop the file onto it. Check the table in the grid, then copy or download the AsciiDoc from the output panel. It takes one step and the data never leaves your browser.

Can I get my table back out of the PDF?

Out of one made here, yes, because the text is real text. Out of a scanned document, no. A scan is an image of a page, and pulling data from it needs optical character recognition, which is a different job with a different failure rate.

Is there a limit on file size?

No. The work happens on your own machine, so the limit is your machine's memory rather than an upload cap. A file with tens of thousands of rows converts in a second or two.

Is my data uploaded anywhere?

No. The parsing and generating are done by JavaScript running on this page. You can watch the network tab while you convert and see that nothing is sent.