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File PDF is a browser-based toolkit for PDF tasks including converting, merging, compressing, splitting, editing, signing and protecting files. The site states that processing happens client-side, so documents remain on the user's device and are not uploaded to a server. It also describes no signup requirement, unlimited use and batch processing.
PDF Fixer is a PDF repair utility for Windows that fixes corrupt PDF files and recovers PDF documents. It is described as able to recover multiple PDF files at once and to repair PDFs that PDFTK and Ghostscript cannot repair.
Sav PDF Viewer is a PDF reader for Android that is open source and requires no permissions. It supports search, text selection and copying, bookmarks, resuming reading, password-protected PDFs and night mode. Links within documents can be opened and files shared. The developer states it does not collect, store or transmit personal data, and that it is not a PDF editor.
A web tool for editing PDF bookmarks. Users select a PDF, add or edit chapter, section and subsection bookmarks, and import bookmarks via keyboard shortcuts. It also includes a merge feature where files are dragged to reorder them before merging.
Sejda is an online PDF service offering an editor and over 30 PDF tools, including merging, splitting, compressing, cropping, filling and signing, and converting PDFs to images or Word. It works online or offline, in the cloud or as a desktop application, with no installation required. Developer documentation covers an HTML to PDF API and 'Save as PDF' links for websites.
Stirling is a free, private, open-source PDF editor that can be deployed on user-managed infrastructure. It provides a PDF reader, a PDF editor with over 60 tools, and a PDF processor for batch handling of large volumes of documents. The tool is designed to keep user files on their own systems, with publicly available source code for audit.
gscan2pdf is a graphical tool for producing PDFs or DjVus from scanned documents. Users scan pages via File/Scan and save selected pages as a PDF with File/Save. Scanning is handled with SANE via scanimage, and PDF conversion is done by PDF::Builder. PDF import is intended for round-tripping files created by gscan2pdf.
PDF24 is a file utility for storage, cleanup, downloads, syncing, previews, or file management.
PDFClear is a file utility for storage, cleanup, downloads, syncing, previews, or file management.
PDFCoffee is a file utility for storage, cleanup, downloads, syncing, previews, or file management.
PDFCraft is a file utility for storage, cleanup, downloads, syncing, previews, or file management.
Signature PDF is a file utility for storage, cleanup, downloads, syncing, previews, or file management.
2OCR is a free online OCR tool that converts images and PDF files into searchable PDF, PDF/A or text output. It accepts formats including jpg, png, tiff, bmp, heic, webp, pdf, doc and xls, requires no registration or email address, and supports multiple languages.
Free Full PDF is a search tool for finding free scientific publications in PDF format. It covers content across fields including electronic and computer engineering, energy, life sciences, agriculture and food sciences, and economic and social sciences. The service provides latest scientific news, topic highlights, and free registration for users to share articles and discuss research with the scientific community.
PDF Drive is a free online platform that provides access to downloadable PDF eBooks across categories including drawing, comics, science and health. It offers faster previews, a personalized experience, and the ability to convert files to EPUB or MOBI format, with options to send downloads to email or Kindle. A premium account option is also available.
PDF Mix Tool is a lightweight application for common editing operations on PDF files, including merging, rotating, and composing pages. It can also alternate pages, generate booklets, add, delete, or extract pages, and edit document information. It is written in C++ and depends on Qt and qpdf, and is free software under the GNU GPLv3 license.
OCR.space is a hosted online OCR service that converts images and PDF documents into editable text and can create searchable PDF files. It is free to use without registration, accepts JPG, PNG, GIF and PDF files, and supports multi-page documents and multi-column text. The free tier limits files to 5MB per document, and uploaded files and extracted text are deleted immediately after processing.
PDF2Go is a free online PDF editor and converter. It provides tools for editing, merging, splitting, rotating, compressing, protecting, unlocking and repairing PDF files, as well as converting PDFs to formats such as Word, JPG, Excel and PowerPoint, and converting other file types to PDF.
2pdfconverter.com is an online PDF conversion and editing toolkit. It converts Word, Excel and PowerPoint documents to PDF, and converts PDF to Word, text, JPG and HTML. It also offers signing, rotating, merging, splitting and shrinking PDFs. The service is free, files are removed from the server after conversion, and converted files remain downloadable for 1 hour.
DigiPDF by La Digitale is a collection of tools for organizing, editing and converting PDF files, built on the free Stirling-PDF service. It groups functions for viewing and editing, merging, splitting, compressing, converting to and from PDF, and signing and securing documents.
Foxit PDF Reader is a free PDF reader and viewer available for Windows, Mac, Android and other platforms, with over 700 million users. Foxit also offers additional products for PDF editing, electronic signature, AI-powered document processing, and enterprise document automation.
Free online document converter that converts Word, Excel, PowerPoint and image files such as TIF, JPG and HEIC to PDF, PDF/A or image formats. Files are uploaded through the browser with no installation required. A separate desktop tool, docuPrinter Pro, is offered for creating PDF or image files from Windows applications with a print menu.
PDFCrowd provides APIs and integrations for converting HTML, URLs, and web pages to PDF. It offers an HTML to PDF API, WordPress plugin, WebSave as PDF, and automation integrations including Zapier and Make, along with free online tools. Documentation covers several document and image APIs and client libraries.
PDFEncrypt is a free, open-source native Windows app that encrypts PDF files using standard PDF encryption algorithms. Users specify a password required to open the document along with options and permissions for the PDF. Encryption runs locally on the Windows PC rather than uploading files to a third-party server. The app uses the iTextPDF library and is released under the AGPL license.
