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Extract Indonesian Text from Mobile-Scanned PDFs
Many Indonesian users create PDFs using mobile phones or scanning apps. These PDFs may contain school forms, receipts, ID records, certificates, office files, and business documents. ConversionTab helps extract Indonesian text while guiding users to improve mobile scan quality.
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Many Indonesian users create PDFs using mobile phones or scanning apps. These PDFs may contain school forms, receipts, ID records, certificates, office files, and business documents. ConversionTab helps extract Indonesian text while guiding users to improve mobile scan quality.
Alt: Indonesian mobile scanned PDF OCR guide
Why mobile scans fail
Shadows
Hands or room lighting may cover text.
Skew
Angled photos make text lines uneven.
ConversionTab help
Extracts text after upload and gives users a quick way to test whether the scan is readable.
Best mobile scanning tips
- Place the document on a flat surface.
- Use bright, even lighting.
- Keep the camera parallel to the page.
- Crop the page before uploading.
Nama pelanggan: Budi Santoso
Nomor dokumen: ID-7710
Status: Disetujui
Workflow: from PDF to usable text
Before you upload
- Export or scan at a steady resolution; avoid heavy shadows across text.
- Crop to the page region you need—wide empty margins slow OCR and can pull in noise.
- If the PDF mixes Indonesian with another script, plan to select every language you can see in the picker.
In ConversionTab
Upload the PDF, choose Indonesian (plus any other languages on the page), turn on text from images when the file is scanned or flattened, then extract. Copy to your editor or download a .txt file for the next step in your workflow.
When to enable “text from images”
Use it whenever highlight-and-copy fails in your PDF viewer, when text appears as a picture, or when exports from scanners or mobile cameras produce image-only pages. Native text layers can stay off for faster runs, but scans almost always need OCR.
Mixed-language and noisy pages
Light paper and mobile photos often lose small marks—prefer a flat scanner for SK letters and official stamps.
For tables, stamps, signatures, and watermarks, expect to tidy spacing and line breaks manually. OCR prioritizes readable characters over perfect layout preservation.
Scan and export checklist
| Signal | What to try | Why it helps |
|---|---|---|
| Blurry small type | Re-scan at 300 DPI, reduce glare | Sharper edges for Indonesian letterforms |
| Skewed photo | Straighten before PDF or rotate pages | Improves line reading order |
| Colorful background | Print to flattened greyscale test | Improves contrast for OCR |
| Password protection | Unlock locally, then extract | Engines cannot OCR locked content |
NIK-length numbers and stamp shadows
Indonesian identity and SK-style documents photographed on phones often show uneven lighting. OCR may drop digits or merge stamp ink into characters. After extraction, compare NIK-length numeric runs digit-by-digit to the scan; do not round or normalize them.
Flat scan
Prefer scanner glass over flash photography for small type.
Stamps
Note “unreadable under stamp” in QA instead of guessing.
Mixed Malay/English
Headers in English with Indonesian body: select both.
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