PDF Expert adds searchable handwriting in 29 languages for iPadOS 27

Handwritten annotations become searchable text

The September 17, 2026 update to PDF Expert turns a long-standing weakness of PDF-based note-taking — handwritten margins and highlights being invisible to keyword search — into a solved feature. Readdle's release adds handwriting recognition that makes scribbled notes searchable across 29 languages, meaning a PDF marked up on an iPad can now be queried the same way as a typed document. For practitioners who annotate contracts, academic papers, or meeting notes on a tablet, the change eliminates the manual transcription step that previously sat between writing and retrieving.

Wider Apple Pencil support and a refreshed interface

Alongside recognition, the same release expands Apple Pencil support, including Apple Pencil Pro squeeze gestures, and extends the Liquid Glass design language across the app. Multiple coverage items frame these as the headline additions alongside handwriting recognition, suggesting Readdle is positioning PDF Expert as the tablet-native reader for iPadOS 27 rather than a desktop-class viewer ported to mobile. For teams standardising on iPad for review and sign-off workflows, the squeeze-gesture support matters because it lets reviewers keep one hand on the Pencil while triggering tools.

What this means for document workflows on iPad

Searchable handwriting slots into a broader pattern of PDF tools absorbing OCR and AI-style extraction directly inside the reader, reducing the round-trip through a separate desktop scanner or cloud OCR service. A reviewer who used to print, sign, scan, and re-OCR a marked-up contract can now keep the entire loop on the device, and the resulting PDF remains text-searchable downstream. The shift also raises expectations: any PDF tool still producing non-searchable scanned pages on iPad will look dated next to this release.

Readers comparing their own tablet stack against PDF Expert can benchmark by exporting a handwriting-heavy PDF and checking whether their current pipeline surfaces the handwritten terms.

Tooling gaps this update leaves open

The release covers reading, recognition, and annotation, but does not by itself address downstream document needs that practitioners still hit after marking up a PDF — stripping metadata before sharing, compressing for email size limits, or reordering pages after a reviewer returns a redlined file. A reader who receives a handwriting-searchable PDF from a colleague still needs to clean, compress, or rearrange that file before circulating it further.

Follow-up to track

Readers should confirm on their own iPadOS 27 devices that handwriting recognition is toggled on in PDF Expert settings, and verify by searching for a handwritten word inside any previously annotated PDF. Watch for Readdle's release notes for any follow-up patch that extends language coverage beyond the 29 announced on September 17, 2026, and check whether competitors respond with matching on-device handwriting search in their own iPad readers.