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Διαβάστε στα ελληνικά σημειώσεις της losLab για PDF, Delphi και λογισμικό εγγράφων
Ελληνική τεχνική επισκόπηση για Alcinoe with Delphi 11.1 Alexandria supporting. Alcinoe with Delphi 11.1 Alexandria supporting. Alcinoe Component Library by Zeus64 is an open source of visual and non-visual components library for
Ελληνική τεχνική επισκόπηση για Set TDateTimePicker format in Delphi 5. Use DateTime_SetFormat in Delphi 5 when TDateTimePicker.Format is unavailable, and keep newer Delphi versions on the direct Format property.
Ελληνική τεχνική επισκόπηση για Fix Delphi E2010 tagLOGBRUSH and tagLOGBRUSH32 incompatible types. Fix Delphi E2010 incompatible types between tagLOGBRUSH and tagLOGBRUSH32 by copying EMR brush fields into TLogBrush before calling CreateBrushIndirect.
Ελληνική τεχνική επισκόπηση για Port Delphi _ftol inline assembly to 64-bit builds. Why Delphi 64-bit builds reject inline asm for _ftol, when to prefer Trunc, and how to avoid porting fragile 32-bit assembly into DCC64.
Ελληνική τεχνική επισκόπηση για PDF Fast Web View Optimization: Explanation & Tips of PDF Linearization. PDF Fast Web View Optimization: Explanation & Tips of PDF Linearization. PDF Fast Web View: Linearization Optimization Guides Have you ever encountered
Ελληνική τεχνική επισκόπηση για Analyzing PDF Font Properties with PDFium VCL in Delphi. Analyzing PDF Font Properties with PDFium VCL in Delphi. Understanding the fonts used in a PDF document is essential for quality control, accessibility
Ελληνική τεχνική επισκόπηση για Building a Feature-Rich PDF Viewer with PDFium VCL in Delphi. Building a Feature-Rich PDF Viewer with PDFium VCL in Delphi. In this tutorial, we’ll explore how to create a professional PDF viewer application using
Ελληνική τεχνική επισκόπηση για Converting Images to PDF Documents with PDFium VCL in Delphi. Converting Images to PDF Documents with PDFium VCL in Delphi. Converting images to PDF is a common requirement for document management, archiving, and
Ελληνική τεχνική επισκόπηση για Converting PDF Pages to JPEG Images with PDFium VCL in Delphi. Converting PDF Pages to JPEG Images with PDFium VCL in Delphi. Converting PDF pages to images is essential for thumbnails, previews, and web display.
Ελληνική τεχνική επισκόπηση για Creating a Multi-Page PDF Viewer with Continuous Scrolling in Delphi. Creating a Multi-Page PDF Viewer with Continuous Scrolling in Delphi. This tutorial explores the Multi-Page Viewer demo, which extends the basic PDF viewer
Ελληνική τεχνική επισκόπηση για Creating PDF Documents from Scratch with PDFium VCL in Delphi. Creating PDF Documents from Scratch with PDFium VCL in Delphi. While PDFium is primarily known for PDF viewing and manipulation, PDFium VCL also provides
Ελληνική τεχνική επισκόπηση για Debugging PDF Page Order Issues: A Real Case Study. Debugging PDF Page Order Issues: A Real Case Study. Debugging PDF Page Order Issues: HotPDF Component Real Case Study Published by losLab | PDF Development
Ελληνική τεχνική επισκόπηση για Debugging Range Check Errors in Delphi PDF Libraries. Debugging Range Check Errors in Delphi PDF Libraries. When working with PDF manipulation libraries in Delphi , range check errors can be particularly
Ελληνική τεχνική επισκόπηση για Decoding Non-Standard PDF Structures – PDF without Pages dictionary. Decoding Non-Standard PDF Structures – PDF without Pages dictionary. PDF Format Variations and Processing Challenges PDF files are everywhere in our
Ελληνική τεχνική επισκόπηση για Delphi HotPDF Component Hello World Sample. Delphi HotPDF Component Hello World Sample. Hello World from Delphi HotPDF Component Welcome to the comprehensive guide for the Delphi HotPDF Component
Ελληνική τεχνική επισκόπηση για Create and free a HotPDF component dynamically in C++Builder. Create and free a HotPDF component instance dynamically in C++Builder, with ownership, exception safety, include paths, and PDF generation checks.
Ελληνική τεχνική επισκόπηση για Extracting Images from PDF Documents with PDFium VCL in Delphi. Extracting Images from PDF Documents with PDFium VCL in Delphi. PDF documents often contain valuable images—photographs, diagrams, charts, and graphics.
Ελληνική τεχνική επισκόπηση για Extracting Text from PDF Documents with PDFium VCL in Delphi. Extracting Text from PDF Documents with PDFium VCL in Delphi. Text extraction is one of the most common PDF processing tasks.
Ελληνική τεχνική επισκόπηση για Fix the HotPDF component reuse issue. Fix the HotPDF component reuse issue. Object Instance State Management and File Conflict Resolution Discover how to solve the “Please load the document
Ελληνική τεχνική επισκόπηση για Building AcroForm Fields and Actions with HotPDF in Delphi. Create AcroForm text fields, checkboxes, radio groups, and submit or JavaScript actions in Delphi with HotPDF, and avoid export-value mismatches in form intake.
Ελληνική τεχνική επισκόπηση για AES-256 PDF Encryption in Delphi: HotPDF Setup and Pitfalls. Set up AES-256 PDF encryption in Delphi with HotPDF: user and owner passwords, permission flags, R5 vs R6 revisions, and the property order that silently fails.
Ελληνική τεχνική επισκόπηση για Comprehensive Guide to PDF Barcode Generation. Comprehensive Guide to PDF Barcode Generation. Implementing 22 Barcode Types with HotPDF Delphi Component In today’s digital world, barcodes serve as the
Ελληνική τεχνική επισκόπηση για Arabic and RTL Text Shaping in Delphi PDFs with HotPDF. Render Arabic and Hebrew text correctly in Delphi PDFs with HotPDF: RtLTextOut, charset values, Unicode font embedding, and right-to-left reading order.
Ελληνική τεχνική επισκόπηση για HotPDF Component Delphi TextOut Sample Project. Explore HotPDF TextOut in Delphi, including fonts, character sets, spacing, rendering modes, searchable text, and production text-layout checks.
Ελληνική τεχνική επισκόπηση για HotPDF Component Vertical Text Sample Project. HotPDF Component Vertical Text Sample Project. HotPDF Delphi Component: Creating Vertical Text Layouts in PDF Documents This comprehensive guide
Ελληνική τεχνική επισκόπηση για PDF Digital Signatures and PAdES in Delphi with HotPDF. Sign PDFs in Delphi with HotPDF: PFX one-call signing, ByteRange reservation for external signers, PAdES baseline fields, and document timestamps.
Ελληνική τεχνική επισκόπηση για Processing Large PDFs in Delphi: HotPDF Direct File API. Process huge PDFs in Delphi without loading them into memory: HotPDF Direct File API handles, encrypted copy, page counts, and incremental updates.
Ελληνική τεχνική επισκόπηση για Object Streams and Incremental Updates in Delphi with HotPDF. Cut Delphi PDF size with object streams and xref streams, then append changes as incremental updates with HotPDF while keeping earlier revisions intact.
Ελληνική τεχνική επισκόπηση για PDF/A, PDF/X, and PDF/UA Output in Delphi: HotPDF Guide. Generate PDF/A, PDF/X, and PDF/UA compliant files from Delphi with HotPDF: output intents, tagged structure, ICC profiles, and veraPDF verification steps.
Ελληνική τεχνική επισκόπηση για Automating PDF Preflight Checks in Delphi with HotPDF. Build an automated PDF preflight gate in Delphi: generate standards-clean files with HotPDF, then verify them with veraPDF and Acrobat before release.
Ελληνική τεχνική επισκόπηση για Delphi PDF Reports with HotPDF: TextOut, Fonts, Images. Practical HotPDF guide to Delphi PDF reports: TextOut coordinates, Unicode font embedding, JPEG and PNG image placement, and drawing primitives that scale.
Ελληνική τεχνική επισκόπηση για XFA to AcroForm Flattening in Delphi Using HotPDF. Convert dynamic XFA forms to native AcroForm in Delphi with HotPDF FlattenLoadedXFA, review flatten warnings, and handle archival and PDF/A limits.
Ελληνική τεχνική επισκόπηση για losLab PDF Library: A Comprehensive Feature Guide. Unleashing the Power of losLab PDF Library: A Comprehensive Feature Guide losLab PDF Library is a robust PDF Software Development Kit (SDK) that provides
Ελληνική τεχνική επισκόπηση για Merging Multiple PDF Files into One Document with PDFium VCL. Merging Multiple PDF Files into One Document with PDFium VCL. Combining multiple PDF documents into a single file is a common requirement in document
Ελληνική τεχνική επισκόπηση για Optimizing PDF Processing Performance: From Minutes to Seconds. Optimizing PDF Processing Performance: From Minutes to Seconds. From Minutes to Seconds in PDF Handling Applications PDF processing performance can make or
Ελληνική τεχνική επισκόπηση για Mastering PDF Annotations with HotPDF Delphi Component. Mastering PDF Annotations with HotPDF Delphi Component. Mastering PDF Annotations with HotPDF Component PDF annotations are one of the most powerful
Ελληνική τεχνική επισκόπηση για Build an Accessible PDF Reader in Delphi with PDFium. Make a Delphi PDF viewer work with screen readers: tagged reading order extraction, word-level TTS highlighting, and honest fallbacks for untagged PDFs.
Ελληνική τεχνική επισκόπηση για Delphi PDF Annotation Review with PDFium Component. Build a PDF annotation review panel in Delphi: index markup by page, survive appearance-stream vetoes, and recolor or delete annotations without ghosts.
Ελληνική τεχνική επισκόπηση για PDF Form Field Navigation in Delphi (PDFium Component). Why filled PDF forms look blank in Acrobat and how to fix it: FormFill setup, keyboard field traversal, and GenerateFormAppearances in Delphi viewers.
Ελληνική τεχνική επισκόπηση για PDF Viewer for Lazarus and Free Pascal with PDFium. Port a Delphi PDF viewer to Lazarus and Free Pascal: string encoding traps, runtime form construction, PDFium binary loading, and TTS beyond Windows.
Ελληνική τεχνική επισκόπηση για Low-Vision PDF Color Filters in Delphi with PDFium. Add dark mode and low-vision reading modes to a Delphi PDF viewer: post-render inversion, two kinds of grayscale, and overlay colors that stay visible.
Ελληνική τεχνική επισκόπηση για Build a PDF Intake Review Workbench in Delphi with PDFium. Triage incoming PDFs in Delphi with PDFium Component: check Info dictionary and XMP metadata, spot encryption, JavaScript, and XFA, and route risky files early
Ελληνική τεχνική επισκόπηση για Batch PDF Preflight Reports in Delphi: PDFium Component CLI. Automate PDF/A and PDF/UA preflight in Delphi with PDFium Component: batch loops, JSON and CSV reports, exit codes, and the 0-based page number trap
Ελληνική τεχνική επισκόπηση για PDFium Delphi Viewer: Render Cache and Smooth Zoom Tactics. Keep zoom and scrolling smooth in Delphi PDF viewers with PDFium: correct cache keys, bitmap ownership, progressive rendering, and high-DPI memory budgets
Ελληνική τεχνική επισκόπηση για Secure PDF Preview in Delphi Apps with PDFium Component. Harden a Delphi PDF preview pane with PDFium Component: disable JavaScript at load, intercept link clicks, filter attachments, and read encryption permissions
Ελληνική τεχνική επισκόπηση για Word-by-Word TTS Highlighting in Delphi PDFium Viewers. Sync text-to-speech with on-page word highlights in Delphi using PDFium word boxes: TrackReadingWordAt, render ordering, auto-scroll, and Unicode pitfalls
Ελληνική τεχνική επισκόπηση για PDFlibPas Compliance and Signing Workbench in Delphi. Wire PDF/A preflight, PAdES signing, and ByteRange audits into one Delphi workbench with PDFlibPas so the revision you validate is the revision you sign.
Ελληνική τεχνική επισκόπηση για PDFlibPas DLL, ActiveX, dylib Bindings Beyond Delphi. How PDFlibPas exposes one flat PDF API as a Stdcall DLL, Safecall ActiveX object, and Cdecl dylib, and the string and handle traps each binding hides.
Ελληνική τεχνική επισκόπηση για Audit PDF Encryption and Permissions in Delphi: PDFlibPas. Read the PDF /Encrypt dictionary like an auditor: PDFlibPas calls for algorithm, key length, AES-256 R5 vs R6, permission bits, and Identity filter traps.
Ελληνική τεχνική επισκόπηση για Merge and Split Gigabyte PDFs in Delphi with PDFlibPas. Open gigabyte PDFs in milliseconds with PDFlibPas direct access: page handles, streaming merge lists, range extraction, and xref repair for damaged files.
Ελληνική τεχνική επισκόπηση για Multi-Engine PDF Rendering in Delphi: PDFlibPas Guide. Switch between built-in, Cairo, and PDFium renderers per file in PDFlibPas: runtime engine probes, DPI scaling traps, and a fallback chain that logs itself.
Ελληνική τεχνική επισκόπηση για PAdES Digital Signatures in Delphi with PDFlibPas. Produce PAdES-B-B, B-T, and B-LT signatures in Delphi with PDFlibPas: timestamp reservations, DSS assembly, and ByteRange audits before trusting signed files.
Ελληνική τεχνική επισκόπηση για PDF/A and PDF/UA Preflight in Delphi with PDFlibPas. Run built-in PDF/A and PDF/UA preflight from Delphi with PDFlibPas: structured findings, diffable reports, save-time fixups, and veraPDF cross-checks.
Ελληνική τεχνική επισκόπηση για PDFlibPas Print Preview and Device-Context Output in Delphi. Delphi print preview that matches the printed page: device-context rendering, virtual printers, scaling, and DevMode persistence with PDFlibPas.
Ελληνική τεχνική επισκόπηση για Tagged PDF Structure Trees in Delphi with PDFlibPas. Generate tagged PDFs from Delphi with PDFlibPas: structure trees while drawing, table header semantics, artifacts, and PDF/UA diagnostics before saving.
Ελληνική τεχνική επισκόπηση για Delphi PDF Text, Image, and Font Extraction with PDFlibPas. Extract positioned text, original image streams, and font metadata from PDFs in Delphi with PDFlibPas, plus extraction options that fit search and audit jobs.
Ελληνική τεχνική επισκόπηση για Printing PDF Documents with PDFium VCL in Delphi. Printing PDF Documents with PDFium VCL in Delphi. Printing PDF documents with accurate rendering and proper scaling is a common requirement.
Ελληνική τεχνική επισκόπηση για RtLTextOut Function in HotPDF Component. RtLTextOut Function in HotPDF Component. Right-to-Left Text in PDF Generation: Introducing HotPDF’s RtLTextOut Function Introduction to Right-to-Left
Ελληνική τεχνική επισκόπηση για Scaling PDF Pages by 70% using losLab PDF Library, in Delphi, C# & VB.Net. Scaling PDF Pages by 70% using losLab PDF Library, in Delphi, C# & VB.Net. When working with PDFs, there are often requirements to scale the content for
Ελληνική τεχνική επισκόπηση για Splitting PDF Documents into Multiple Files with PDFium Delphi. Splitting PDF Documents into Multiple Files with PDFium Delphi. Splitting a large PDF into smaller files is essential for document distribution, archiving,
Ελληνική τεχνική επισκόπηση για Transforming RTF Files into PDF: A Guide for Developers. Transforming RTF Files into PDF: A Guide for Developers. Transforming RTF Files into PDF: A Guide for Delphi, C# & VB.
Ελληνική τεχνική επισκόπηση για Understanding PDF Page Ordering – Why Your PDF Pages Aren’t There. Understanding PDF Page Ordering – Why Your PDF Pages Aren’t There. The Hidden Complexity Behind PDF Structure PDF documents are far more sophisticated than
Ελληνική τεχνική επισκόπηση για Understanding PDF Page Trees: Why Page Order Matters. Understanding PDF Page Trees: Why Page Order Matters. PDF documents might look simple on the surface, but their internal structure can be surprisingly
Ελληνική τεχνική επισκόπηση για Using PDFium VCL in Delphi for side-by-side comparison of PDF documents. Using PDFium VCL in Delphi for side-by-side comparison of PDF documents. Comparing multiple PDF documents side by side is essential for revision review,
Ελληνική τεχνική επισκόπηση για Working with PDF Attachments in Delphi using PDFium Component. Working with PDF Attachments in Delphi using PDFium Component. PDF documents can contain embedded file attachments—a powerful feature for bundling related
Ελληνική τεχνική επισκόπηση για HotPDF Canvas Draw. Use HotPDF Canvas drawing in Delphi to create vector-style PDF output, with guidance on coordinates, colors, deterministic rendering, and validation.
Ελληνική τεχνική επισκόπηση για HotPDF Chart Sample. Learn how a Delphi TeeChart report can be exported with HotPDF, including canvas rendering, page layout, scaling, and production checks for PDF charts.
Ελληνική τεχνική επισκόπηση για Add clickable hyperlinks to PDF files with HotPDF. A practical HotPDF Delphi hyperlink example showing clickable PDF links, URL targets, annotation placement, validation checks, and viewer compatibility tips.
Ελληνική τεχνική επισκόπηση για HotPDF Table To PDF. Convert Delphi dataset rows to paginated PDF tables with HotPDF, including page headers, row rendering, column sizing, and production report checks.
Ελληνική τεχνική επισκόπηση για PDF electronic signature workflow with DigiSigner. A practical review of PDF electronic signature workflow, DigiSigner features, security checks, audit trails, and what to evaluate before online signing.
Ελληνική τεχνική επισκόπηση για Building a Simple PDF Document from Scratch. Building a Simple PDF Document from Scratch. Building a PDF Document using Notepad Master the art of creating PDF files manually and understand the
Ελληνική τεχνική επισκόπηση για In-depth exploration of PDF document structure. In-depth exploration of PDF document structure. Understanding the Inner Structure of PDF Welcome to the fascinating world of PDF internals!
Ελληνική τεχνική επισκόπηση για Master PDF Structure: XML Metadata, Bookmarks & Annotations. Master PDF Structure: XML Metadata, Bookmarks & Annotations. Understanding PDF XML Metadata and Bookmarks: A Technical Guide Key Topics Covered 📍
Ελληνική τεχνική επισκόπηση για PDF Graphics Explained: Understanding PDF Visual Elements. PDF Graphics Explained: Understanding PDF Visual Elements. PDF Graphics: From Basic Paths to Advanced Visual Effects Discover the fascinating world of PDF
Ελληνική τεχνική επισκόπηση για PDF Text and Font Handling with Code Examples and Best Practices. PDF Text and Font Handling with Code Examples and Best Practices. Mastering PDF Text and Fonts: A Developer’s Guide PDF documents have revolutionized how
Ελληνική τεχνική επισκόπηση για Understanding PDF File Structure: A Technical Overview. Understanding PDF File Structure: A Technical Overview. Inside PDF Files: A Complete Structural Breakdown The Portable Document Format (PDF) has become the
Ελληνική τεχνική επισκόπηση για Understanding PDF: The Universal Document Format. Understanding PDF: The Universal Document Format. PDF – The Document Format That Changed Everything Every day, millions of people open PDF files without
Ελληνική τεχνική επισκόπηση για HotXLS Charts and Images: Excel Drawings in Delphi. How to add Excel charts, images, and shapes from Delphi with HotXLS: chart sheets in XLS, embedded charts and pictures in XLSX, EMU sizing, and anchor traps.
Ελληνική τεχνική επισκόπηση για Excel Comments and Hyperlinks in Delphi with HotXLS. Write cell comments with authors, external URLs, and in-workbook links from Delphi using HotXLS, including the XLSX internal-link API and XLS comment quirks.
Ελληνική τεχνική επισκόπηση για HotXLS Conditional Formatting and Rich Text in Delphi. Apply cellIs rules, data bars, icon sets, and rich text runs from Delphi with HotXLS, avoiding the dxf style and font pool index traps in XLSX files.
Ελληνική τεχνική επισκόπηση για Export Excel to CSV, TSV, and HTML in Delphi (HotXLS). Export Excel sheets to CSV, TSV, and HTML from Delphi with HotXLS. Covers RFC 4180 quoting, UTF-8 BOM, and why formulas need Calculate before export.
Ελληνική τεχνική επισκόπηση για HotXLS Data Validation, AutoFilter and Tables in Delphi. Add dropdown validation, AutoFilter criteria, and Excel tables from Delphi with HotXLS, including server-side filter preview and the 0-based column ID trap.
Ελληνική τεχνική επισκόπηση για Exporting Delphi Datasets to Excel Reports with HotXLS. Export TDataset results to Excel from Delphi with HotXLS: TDataToXLS grouping and paging, the VCL dependency trap, XLSX conversion, and a service-safe loop.
Ελληνική τεχνική επισκόπηση για Defined Names and Cross-Sheet Formulas in Delphi (HotXLS). Create workbook-scoped and sheet-scoped defined names with HotXLS in Delphi, write cross-sheet formulas that survive edits, and avoid _xlnm name conflicts.
Ελληνική τεχνική επισκόπηση για HotXLS Formula Engine and Custom Functions in Delphi. Evaluate Excel formulas in Delphi with HotXLS: the Calculate engine, OnUserFunction custom functions, array formulas, and why CSV export needs computed values.
Ελληνική τεχνική επισκόπηση για Large Excel Workbook Performance in Delphi with HotXLS. Practical HotXLS performance tuning for large Excel files in Delphi: StreamingWrite saves, style pool reuse, row callbacks, and faster read-only loads.
Ελληνική τεχνική επισκόπηση για HotXLS Merged Cells and Report Template Layout in Delphi. How HotXLS handles merged cells in Delphi report templates: anchor-cell semantics, InsertRows shifting rules, merge audits, and HTML and RTF export behavior.
Ελληνική τεχνική επισκόπηση για Open and Save ODS Files in Delphi with HotXLS. HotXLS opens and saves OpenDocument Spreadsheet files from Delphi: SaveAsODS export options, the lightweight ODS import path, and what survives a round trip.
Ελληνική τεχνική επισκόπηση για Generate Excel Files in Delphi Without Office Automation. Build XLS and XLSX workbooks from Delphi services without installing Excel: native BIFF and OOXML writers, stream output to HTTP responses, COM-free.
Ελληνική τεχνική επισκόπηση για HotXLS: Sheet Protection, Page Setup, and Printing in Delphi. Protect worksheets, keep input ranges editable, and control print layout in Delphi with HotXLS: Locked flags, page setup, scaling, and header codes.
Ελληνική τεχνική επισκόπηση για List Sheet Names Fast in Delphi with HotXLS GetSheetNames. Read worksheet names from XLS, XLSX, and ODS files in Delphi without loading cell data: HotXLS GetSheetNames, encrypted-file detection, intake triage.
Ελληνική τεχνική επισκόπηση για HotXLS Streaming Writes for Delphi Server Batch Jobs. Keep large XLSX exports inside memory limits with HotXLS StreamingWrite, row-level write callbacks, style pool reuse, and per-thread batch workbook jobs.
Ελληνική τεχνική επισκόπηση για Template-Based Excel Report Generation in Delphi with HotXLS. Fill Excel report templates from Delphi with HotXLS: locate placeholders with FindText, clone detail rows, insert rows safely, and recalculate before saving.
Ελληνική τεχνική επισκόπηση για HotXLS: Preserve VBA Macros and External Links in Delphi. How HotXLS preserves VBA projects and external links when Delphi code edits XLS and XLSX workbooks: macro-enabled saves, link targets, and round-trip limits.
Ελληνική τεχνική επισκόπηση για HotXLS: Workbook Audit and Format Conversion in Delphi. Audit unknown Excel files from Delphi with HotXLS: count charts, formulas, macros, and protection, then convert XLS, XLSX, and ODS with known fidelity limits.
Ελληνική τεχνική επισκόπηση για Setting Excel Document Properties in Delphi with HotXLS. Set and read Excel document properties from Delphi with HotXLS: title, author, company, and keywords across BIFF SummaryInformation and OOXML docProps parts.
Ελληνική τεχνική επισκόπηση για Encrypt XLSX Files with AES in Delphi using HotXLS. Write AES-encrypted XLSX files from Delphi with HotXLS SaveAsEncrypted: ECMA-376 Standard Encryption, password handling, and the write-only decryption limit.