Plainmark

Review every page. Keep every word.

PDF to Markdown,
with the original in view.

Plainmark converts text-based PDFs into clean, editable Markdown and keeps the original beside the result for review.

Up to 50 MB · Stored temporarily for conversion

Text layer detected 14-page sample
Q3 Market Analysis Report.pdf14 pages
Text layer detected

Q3 2026

Market Analysis Report

Executive summary

Demand for cloud infrastructure and developer tools continued to grow across North America and Europe.

Key findings

  • Enterprise software revenue increased 17%.
  • Acquisition costs decreased by 8%.
MarkdownEditable
1 # Market Analysis Report

3 ## Executive summary

5 Demand for cloud infrastructure and
  developer tools continued to grow.

9 ## Key findings

11 - Enterprise software revenue increased 17%.
12 - Acquisition costs decreased by 8%.

Works best with text-based PDFs. Tables, invoices, and visual brochures may need a quick review.

How it works

From fixed pages to workable text.

Plainmark keeps the source close, so you can verify the conversion instead of trusting a black box.

  1. 01

    Choose your PDF

    Upload a text-based report, paper, or presentation up to 50 MB.

  2. 02

    Review side by side

    Compare the original pages with editable Markdown while the details are still in view.

  3. 03

    Copy or export

    Fix anything that needs attention, then copy the text or download a Markdown file.

Made for real documents

A cleaner start for the work that follows.

A researcher reviewing a paper and structured notes side by side

Research

Move papers into your notes.

Bring headings, paragraphs, and references into a Markdown-based research workflow. Read the conversion guide.

A technical writer moving a product manual into structured documentation

Documentation

Recover content from old PDFs.

Turn archived guides and reports into text your team can update and reuse.

A developer preparing PDF content for a private knowledge workflow

AI workflows

Prepare readable source material.

Create structured Markdown before adding documents to your own search or AI tools.

Private by design

Your document is here to be converted. Nothing else.

Files are stored temporarily so you can review and export the result. Plainmark does not use uploaded documents to train AI models or send their contents to third-party AI services.

For sensitive, regulated, or confidential material, follow your organization’s document-handling policy before uploading.

Questions, answered

What should you know before uploading a PDF?

Which PDFs work best?

Text-based PDFs with clear headings, paragraphs, and lists work best. Complex tables, multi-column layouts, and highly visual brochures may need manual cleanup.

Does Plainmark support scanned PDFs?

Not yet. Plainmark does not currently run OCR, so image-only scans may produce little or no text.

What happens to images?

Embedded images are saved separately when possible. The Markdown stays free of automatic image references. Choose Download .md + images to get the text and image folder together in a ZIP file.

Can I edit the result?

Yes. Edit the Markdown directly in the review workspace, switch to preview, copy it, or export it as an .md file.

Is there a file size limit?

Yes. Each PDF can be up to 50 MB.