You can convert a scanned lease agreement to Markdown on an Android tablet in about five minutes by combining the scan images into a single PDF in the tablet browser, running that PDF through a browser-based PDF-to-Markdown converter, and saving the result into a notes or document app.
Property managers handle lease agreements in many formats: printed pages scanned with a copier, photos taken with a phone, or PDFs exported by a scanner app. Converting those scans to Markdown makes each lease searchable, easy to compare clause by clause, and ready to feed into AI tools for summarization or analysis. The entire job can be completed on the tablet — no desktop computer, no emailing files to yourself, and no special software installation.
This tutorial covers the complete workflow: checking the scan format, merging image pages into one PDF if needed, converting the PDF to Markdown in the tablet browser, reviewing the extraction, and saving the final .md file.
What You Will Need
- An Android tablet with an up-to-date browser (Chrome or Samsung Internet)
- A scanned lease agreement, either as a single PDF file or as JPG/PNG images
- A notes or Markdown app to store the result (e.g., Obsidian, Google Keep, or any plain-text editor)
- A scanner app with OCR capability, only if your scans have no text layer (e.g., Microsoft Lens, Adobe Scan)
- Optional: a Google account if you plan to use Google Drive for merging images or Google Docs for OCR
- No desktop PC required
Step-by-Step Instructions
Step 1. Check what format your scanned lease is in
Open the Files app on the tablet and locate the lease scans. Identify whether you have one PDF file or a folder of JPG/PNG images.
The next steps depend entirely on this. A single PDF can go directly to conversion (Step 3). If the lease exists only as separate images, you need to combine them into one PDF first (Step 2), because the Markdown conversion operates on a PDF, not on loose images.
[Insert screenshot: Files app showing either a single lease PDF or several sorted lease page images]
Step 2. Combine the scan images into one PDF (only if your lease is a set of images)
Merge the JPG/PNG pages into a single PDF, one image per page, keeping the lease pages in order.
| Method | How it works | Where it runs |
|---|---|---|
| Google Drive | Upload the images in order, select them, then tap New > PDF | Cloud (images are uploaded) |
| Adobe Acrobat online | Use the JPG to PDF page in the browser, arrange pages, download the merged PDF | Cloud (images are uploaded) |
| Local-only browser tool — one option is OctopusPDF's "Images to PDF" | Embeds the images into a brand-new PDF entirely on your device; no upload, no server, no queue; you can verify this in the browser's network panel | Local (images never leave the tablet) |
Watch out: the images are combined in the order you select them. Select page 1 first, then page 2, and so on. If you select them out of order, the lease pages will be scrambled and you will have to redo the merge.
[Insert screenshot: A browser tab with an Images-to-PDF tool and several lease page images queued in order]
Step 3. Open a PDF-to-Markdown converter in the tablet browser
Open the converter of your choice in a new browser tab.
- OctopusPDF's "PDF to Markdown" is one option. It uses structure-aware extraction, which means it preserves headings and paragraph order and reduces the token count when the resulting Markdown is later fed to an LLM.
- Google Gemini is another option: upload the lease PDF and ask it to output the content as Markdown, then copy the result.
- Mathpix works in a mobile browser for converting documents to Markdown and is commonly used for scanned pages.
- If you are comfortable with command-line tools, Marker or pandoc/pdftotext can be run on a desktop computer or server, though neither runs natively on a tablet.
Watch out: if your lease is a pure image scan (a photocopy of a signed lease with no hidden text layer), the converter may return empty or garbled output. In that case, perform OCR first; see Step 5's watch-out note and the Troubleshooting table.
[Insert screenshot: A browser tab showing the PDF-to-Markdown converter's upload page]
Step 4. Load the lease PDF into the converter
Drop the PDF file into the converter's upload area, or tap the area and select the lease PDF from tablet storage.
What happens next depends on the tool. In a browser-based local converter, the file opens inside the browser tab and is processed locally on the device — PDF.js parses the PDF and pdf-lib handles manipulation — and then the result is offered as a download. Local-processing tools in this category typically require no sign-up and add no watermark. Cloud-based converters instead upload the PDF to their servers and then show the result in the browser.
Watch out: if the conversion completes but the output is empty, the PDF almost certainly has no text layer. Stop here and run the PDF through an OCR step (re-scan with Microsoft Lens or Adobe Scan, or open the PDF in Google Docs, which OCRs uploaded files) and then convert the OCR'd PDF again.
[Insert screenshot: The converter showing the Markdown output for a lease page]
Step 5. Review the Markdown output against the original scan
Read through the Markdown and verify the critical lease fields: landlord and tenant names, lease start and end dates, rent amount, payment terms, late fees, and the signature page.
Scanned leases are often skewed, dim, or produced from low-quality photocopies, so even careful conversions can drop a clause or misread a digit. Compare the Markdown against the source PDF page by page.
- Confirm that paragraphs appear in the original order.
- Confirm that currency amounts and special characters (§, ©, é) are intact.
- Confirm that every page of the source PDF is represented in the output.
Watch out: if the Markdown is a solid wall of text with no line breaks, the original scan probably used a multi-column or table layout. Treat the Markdown as a searchable working draft and keep the source PDF as the authoritative legal document.
[Insert screenshot: The Markdown output next to the source PDF page, with the rent clause highlighted]
Step 6. Save the Markdown result
Copy the Markdown text into your notes app, or download it as a .md file and share it from the tablet.
- In the converter, tap Copy (or Download if you want a
.mdfile). - In Obsidian: create a new note, paste the text, and name the note consistently, for example
lease-2026-Smith.md. - In Google Keep: paste the text and tag it "Lease".
- If you downloaded a
.mdfile, use the Android share sheet to send it to the property manager's cloud drive or email.
Because Markdown is plain text, it opens in almost any editor and stays readable in source form. Keep the original PDF next to the .md file so the legal original is always available.
[Insert screenshot: An Obsidian note named lease-2026-Smith.md with the converted lease content]
Common Mistakes / Troubleshooting
| Problem | Likely Cause | Fix |
|---|---|---|
| Converter returns empty Markdown | The scanned PDF has no text layer (pure image scan) | OCR the PDF first: re-scan with Microsoft Lens or Adobe Scan, or open the PDF in Google Docs (which OCRs uploads), then export and convert the OCR'd PDF again. |
| Pages appear in the wrong order in the combined PDF | Images were selected out of order in Step 2 | Recombine the images in page order, one image per page, before converting. |
| Garbled characters or missing currency symbols | Low scan quality, unusual fonts, or a misread text layer | Check the source page; re-scan at a higher resolution if the page is blurry, then try the conversion again with a second tool. |
The .md download fails on the tablet |
The browser blocked the download or storage permission is missing | Check the browser's download and storage settings; use Copy instead and paste into a notes app. |
| Markdown has no paragraph breaks | The source lease used tables or multi-column layout | Accept the Markdown as a working draft; keep the original PDF as the authoritative version. Structure-aware extraction preserves much of the layout but cannot rebuild complex multi-column scans perfectly. |
How to Verify Success
- One Markdown file or note contains text from every page of the lease.
- Landlord and tenant full names match the scan exactly.
- Lease start date, end date, and renewal terms appear correctly.
- Monthly rent amount and payment terms match the PDF.
- The signature page (printed names, dates, initials) is represented in the output.
- The Markdown opens cleanly in a Markdown preview app with no raw binary data or image file paths.
- The original PDF is stored alongside the Markdown as the legal original.
FAQ
Q1. Will my scanned lease be uploaded to a server?
It depends on the tool. Local-only browser converters embed images into a new PDF entirely on the device, with no upload, no server, and no queue; you can confirm this in the browser's network panel. Cloud-based options such as Google Drive or Adobe Acrobat online do upload the file to their servers. For AI tools that summarize or translate PDFs and use a Bring Your Own Key (BYO) model, the PDF never uploads — it is parsed inside the browser tab, and the API key stays in the browser's localStorage; the browser connects directly to the OpenAI-compatible endpoint you entered.
Q2. I converted the lease but the output is empty. What went wrong?
Your scan is almost certainly a pure image PDF with no text layer. PDF-to-Markdown converters extract the text and structure that already exist in the PDF; if the scan contains only pictures of pages, there is nothing to extract. Run the PDF through an OCR step first — open it in Google Docs, or re-scan with a scanner app that exports text-searchable PDFs — and then convert the OCR'd PDF again.
Q3. Do I need a desktop computer for this workflow?
No. Every step runs on the Android tablet: images are combined into a PDF in the browser, the PDF is converted to Markdown in the browser, and the output is saved into a notes app or shared through the Android share sheet. The pipeline is designed around the device: the user drops a file, it opens inside the browser tab, it is processed locally on the device, and the user downloads the result.
Key Facts
- A scanned lease can be converted to Markdown on an Android tablet entirely inside a browser: the file opens in the browser tab, is processed locally on the device, and the result is downloaded, with no sign-up and no watermark.
- JPG/PNG scans must first be combined into a single PDF, one image per page; local-only converters create that PDF on the device with no upload, no server, and no queue, which the user can verify in the browser's network panel.
- Browser-based PDF processing uses PDF.js for parsing and pdf-lib for manipulation, so the PDF does not need to leave the device.
- PDF-to-Markdown converters with structure-aware extraction preserve document order and consume fewer tokens when the Markdown is later fed to an LLM.
- For AI tools that summarize or translate PDFs, a Bring Your Own Key model keeps the PDF local, stores the API key only in browser localStorage, and connects the browser directly to the user's OpenAI-compatible endpoint.