calibre
Kovid Goyal
Manage and convert e-books and technical manuals — EPUB, MOBI and PDF, and read them on any device.
Get it from the vendorOffice suites, reading, editing, merging and splitting PDF files, scanning and text recognition (OCR).
17 results
gImageReader
gImageReader project
Graphical OCR built on Tesseract — turn scanned pages and PDFs into text or a searchable PDF.
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LibreOffice
The Document Foundation
A full office suite — documents, spreadsheets, presentations and drawings, compatible with Office files.
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OCRmyPDF
OCRmyPDF project
Adds a searchable text layer to scanned PDFs — old reports, standards and drawings become searchable.
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Okular
KDE
KDE’s document viewer — read and annotate PDFs with highlights and notes, and verify digital signatures.
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PDF Arranger
PDF Arranger project
Merge, split, rotate, crop and reorder PDF pages by drag and drop — for assembling calc packages, submittals and drawing sets.
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PDF4QT
Jakub Melka
An open PDF editor and viewer — annotations, page organising, signing, redaction, plus a tool to compare document versions.
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PDFsam Basic
Sober Lemur
Split, merge, rotate and extract PDF pages — for drawing sets, specifications and submissions.
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Scribus
Scribus Team
Open-source desktop publishing: datasheets, catalogues, reports and posters, with PDF/X export and colour management.
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SumatraPDF
Krzysztof Kowalczyk
A tiny, very fast PDF reader for Windows — opens heavy drawings instantly, and reads ePub and DjVu too.
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Tesseract OCR
Tesseract OCR project
The open OCR engine behind many tools — turns scans into text in more than 100 languages.
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Xournal++
Xournal++ team
Handwriting and PDF annotation with a stylus — markups on drawings, lecture notes and problem solving.
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diff-pdf
Vaclav Slavik
Visual comparison of two PDF versions — see at once what changed between revisions of a drawing or report.
Get it from the vendorNAPS2
Ben Olden-Cooligan
Scan documents straight to searchable PDF with built-in OCR — delivery notes, minutes and marked-up drawings from site.
Get it from the vendorNormCap
dynobo
A screenshot tool that captures text instead of images — mark an area and the text goes to the clipboard.
Get it from the vendorONLYOFFICE Desktop Editors
ONLYOFFICE
An open office suite with high docx, xlsx and pptx fidelity, plus a PDF and form editor — for exchanging files with Microsoft Office users.
Get it from the vendorText Grab
Joseph Finney
A Windows screen-OCR tool — copies text and tables from screenshots, images and windows, all locally.
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