Make a Scanned PDF Searchable
Add a searchable text layer to scanned PDF pages. Choose the document language and review recognized text carefully, especially names and numbers.
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Choose an output format for each file.
How to make a scanned PDF searchable
- Select a supported PDF file from your device and check its detected type and size.
- Open Settings for the selected file to review document language. Leave the displayed defaults if they match your needs.
- Choose Convert and wait for the result. A queued job is waiting for a processing slot; a processing job is being handled.
- Download the result and open it in the application where you will use it. Keep the original and remove the server copy when finished.
What you will download
One searchable PDF with rasterized page images and a recognized text layer. It is not an editable Word document.
Available settings
- Document language
- English, German, French, Spanish; default English.
Understand your file formats
- PDF is a fixed-page document format for reading and sharing.
When this tool is useful
- Add a searchable text layer to scanned PDF pages. Choose the document language and review recognized text carefully, especially names and numbers.
Technical summary: OCR PDF
This operation writes PDF output with the page, pixel or text changes shown below.
| Format or operation | Format category | Compression behavior | Transparency support | Multi-page or animation behavior in ConverterZap | Typical best use |
|---|---|---|---|---|---|
| Fixed-page document | Container; text/vector and images may use different compression | Page graphics can include transparency; PDF image routes render/flatten pixels | Multi-page; merge/split/reorder/rotate preserve selected page order | Create a searchable text layer: Pages are rasterized at 150 DPI and Tesseract adds recognized text; the result is still a PDF. |
Explore the file formats
Need another direction or a different output? Use the format guides to see only the conversion routes that are currently published.
About your output
A PDF page can contain text, vector artwork, images, links and interactive objects. Up to 20 pages at 150 DPI. OCR can misread text and does not preserve editable document layout. Each page is rasterized; existing text layers are replaced.
Questions about OCR PDF
Does PDF OCR create an editable Word document?
No. It creates a PDF with a searchable text layer. Pages are rasterized and existing text layers are replaced. Names, numbers and low-quality scans need careful review.
What should I check in an OCR result?
Search several names, numbers and headings in the returned PDF. Tesseract creates a searchable layer from 150 DPI page images, so recognition errors remain possible.
Which real-world check matters before I share this PDF file?
Open the downloaded result in the application that will receive it and check the behavior described in the limits: Up to 20 pages at 150 DPI. OCR can misread text and does not preserve editable document layout. Each page is rasterized; existing text layers are replaced.