# Is your PDF actually searchable?

*Last reviewed: September 23, 2026 · [HTML version](https://docfindapp.com/tools/is-your-pdf-searchable)*

Some PDFs are text. Some are *photographs* of text. They look identical on screen, and only one of them
can be searched — which is why "search inside this PDF" sometimes finds nothing in a document you can
plainly read with your own eyes.

The tool on the HTML version of this page checks a PDF you choose and tells you which kind you have.
**The file never leaves your browser**: nothing is uploaded, no network request carries it anywhere, and
nothing is stored.

## What the answer means

In a PDF, text is drawn by instructions: the standard describes a text object as "operators that may
show text strings, move the text position, and set text state" (*PDF 32000-1:2008*, the PDF standard as
published by Adobe, §9.4.1, read 23 September 2026 —
https://opensource.adobe.com/dc-acrobat-sdk-docs/pdfstandards/PDF32000_2008.pdf). This check looks for
those instructions.

**"Has a text layer"** — the words are stored in the file as text, so a text search has something to
match. If searching still fails, the problem is the search, not the document — see
[why PDF search stops working](https://docfindapp.com/answers/pdf-search-not-working).

**"No text found — this looks like a scan"** — the file has page images and no text-drawing instructions.
There is nothing in the file that marks any of those pixels as letters, so there is nothing for a search
to match. To make it searchable, the picture has to be run through OCR — optical character recognition —
which looks at the shapes and writes a text layer underneath. **This page does not run OCR** and cannot
make your file searchable; it only tells you which kind of file you have. That is
[what OCR is](https://docfindapp.com/answers/what-is-ocr), and
[how you make a scanned PDF searchable](https://docfindapp.com/answers/make-a-scanned-pdf-searchable).

**"Contains both text and images"** — the file has a text layer and it also has images. *Which pages are
which is not something this check can tell you* — it reads the file as a whole, not page by page. If whole
pages seem to be missing from your search results, those pages may be scans.

**"Can't say for this file"** — parts of the PDF use a compression this page cannot read, so a "no text
found" answer would not be trustworthy. The file may well be searchable.

**"Encrypted — it may still be searchable"** — the PDF standard allows "up to two passwords": an owner
password and a user password. A reader first tries to open an encrypted file with the default, empty user
password, and only "If this authentication attempt fails" should it "prompt for a password" (same
standard, §7.6.3.1). So a file with a real **user password** asks for it, and nothing inside can be read
until it is entered. A file restricted only by an **owner password** — limits on printing or copying —
opens without a prompt, and **DocFind treats it as an ordinary document**, indexed and searched like the
rest. This page reports that a file is encrypted but does not try to tell the two apart; doing so means
attempting the decryption itself, which is more than a web page should do with your document. The
quickest test is the one you can run yourself: open it in any reader. No password prompt means it will
search normally.

## The honest limits — ours and OCR's in general

- **Handwriting is not recognised.** DocFind's recognisers are built for printed text. A handwritten page
  will not become searchable, here or in the app.
- **Scanned pages in other scripts depend on the platform.** On Android, the recogniser bundled with the
  app reads Latin-script printed text only, so a *scanned* Chinese, Arabic or Hindi page will not become
  searchable there. On iPhone, scanned Chinese, Japanese, Korean, Arabic and Thai pages can be read. A
  scanned Hindi page — or any page in Devanagari — cannot be read on either platform.
- **Text that is already in the file is a different case.** A PDF that already holds Chinese or Arabic
  *as text* searches normally on both platforms. Devanagari text (Hindi, Marathi) is not matched
  reliably, even when it is stored as text.
- **Search matches what you type.** DocFind looks for the word you asked for; it does not guess at related
  words, so "running" will not find "run". That is deliberate — you can trust a hit.
- **PDFs only.** Word, Excel and plain-text files are not supported.

## Or stop checking them one at a time.

DocFind searches inside many PDFs at once, and reads scanned pages by running OCR on your device. The
index is built on the phone and stays there; nothing is uploaded, and the iPhone app ships with no network
capability at all. iPhone and Android.

Related: [what is OCR?](https://docfindapp.com/answers/what-is-ocr) ·
[how to make a scanned PDF searchable](https://docfindapp.com/answers/make-a-scanned-pdf-searchable) ·
[why PDF search stops working](https://docfindapp.com/answers/pdf-search-not-working)