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尼古拉特斯拉, Lei Zhang2

Jan 6

Inquiry About PDFium Support for Portfolio (File Attachment) Functionality

Hi, Please take a look at FPDFDoc_GetAttachment(), FPDFAttachment_GetName() and

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Inquiry About PDFium Support for Portfolio (File Attachment) Functionality

Hi, Please take a look at FPDFDoc_GetAttachment(), FPDFAttachment_GetName() and

Jan 6

12/26/25

FPDF_RenderPageBitmapWithMatrix API

I'm using the FPDF_RenderPageBitmapWithMatrix API. Which rendering engine, Skia or an ACG

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FPDF_RenderPageBitmapWithMatrix API

I'm using the FPDF_RenderPageBitmapWithMatrix API. Which rendering engine, Skia or an ACG

12/26/25

12/22/25

Is it possible to cross-compile with is_clang=false ?

As to the initial question, I can now say the answer is also yes (my colleague recently cross-

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Is it possible to cross-compile with is_clang=false ?

As to the initial question, I can now say the answer is also yes (my colleague recently cross-

12/22/25

John Paul Adrian Glaubitz, Lei Zhang11

12/2/25

[PATCH] core/fxcrt/numerics: Fix incorrect preprocessor check on aarch64

On Mon, 2025-12-01 at 13:26 -0800, Lei Zhang wrote: > On Mon, Dec 1, 2025 at 1:22 PM John Paul

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[PATCH] core/fxcrt/numerics: Fix incorrect preprocessor check on aarch64

On Mon, 2025-12-01 at 13:26 -0800, Lei Zhang wrote: > On Mon, Dec 1, 2025 at 1:22 PM John Paul

12/2/25

tan zhiyuan, … Lei Zhang5

12/1/25

Crash issue when using FPDFBookmark_GetDest and FPDFDest_GetDestPageIndex on Linux-musl-arm64 with version 144.0.7543.0

The default stack size in HarmonyOS is 8 MB, which is far larger than the memory consumed by eight

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Crash issue when using FPDFBookmark_GetDest and FPDFDest_GetDestPageIndex on Linux-musl-arm64 with version 144.0.7543.0

The default stack size in HarmonyOS is 8 MB, which is far larger than the memory consumed by eight

12/1/25

geisserml, Lei Zhang5

11/14/25

GN error when attempting to build on Windows 11 arm64 natively

Thanks for the info, I'll post any future questions about //build on chromium-dev then. On Friday

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GN error when attempting to build on Windows 11 arm64 natively

Thanks for the info, I'll post any future questions about //build on chromium-dev then. On Friday

11/14/25

M G, … geisserml21

10/31/25

Support Linux/ppc64le arch

> I'm calling /usr/bin/gn and /usr/bin/ninja directly, as the depot_tools "gn"

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Support Linux/ppc64le arch

> I'm calling /usr/bin/gn and /usr/bin/ninja directly, as the depot_tools "gn"

10/31/25

10/31/25

Highlight Annotation Colors Are Not Read by FPDFPageObj_GetFillColor or FPDFPageObj_GetStrokeColor

Hello all, I am working with PDF files that contain highlight annotations, and I noticed an issue

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Highlight Annotation Colors Are Not Read by FPDFPageObj_GetFillColor or FPDFPageObj_GetStrokeColor

Hello all, I am working with PDF files that contain highlight annotations, and I noticed an issue

10/31/25

Александр Рыбалов, Lei Zhang4

10/17/25

Build PDFium as static library on Linux, with use_custom_libcxx flag

is_component_build=false pdf_is_standalone=true pdf_is_complete_lib=true use_custom_libcxx=false

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Build PDFium as static library on Linux, with use_custom_libcxx flag

is_component_build=false pdf_is_standalone=true pdf_is_complete_lib=true use_custom_libcxx=false

10/17/25

Paulo Coutinho, … Lei Zhang5

10/15/25

Android 16 KB page size support

Hi, I made a tool to check APK, AAB and SO direct. It is free and open source: https://cavfy.com/

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Android 16 KB page size support

Hi, I made a tool to check APK, AAB and SO direct. It is free and open source: https://cavfy.com/

10/15/25

Loc Zhang (上杉夏香), Lei Zhang2

10/15/25

Is it possible to create Line and Watermark annotation into pdf?

Please add this as 2 separate feature requests on the bug tracker: https://crbug.com/pdfium/new, one

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Is it possible to create Line and Watermark annotation into pdf?

Please add this as 2 separate feature requests on the bug tracker: https://crbug.com/pdfium/new, one

10/15/25

Kuka, Lei Zhang2

10/15/25

Rendering speed and quality

Yes! On Sun, Sep 14, 2025 at 8:40 PM Kuka <tyck...@gmail.com> wrote: > > Has the

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Rendering speed and quality

Yes! On Sun, Sep 14, 2025 at 8:40 PM Kuka <tyck...@gmail.com> wrote: > > Has the

10/15/25

blem, … Lei Zhang4

10/15/25

unable to build pdfium

The OP references origin/chromium/3061 from early 2017. Is the build really for that PDFium branch,

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unable to build pdfium

The OP references origin/chromium/3061 from early 2017. Is the build really for that PDFium branch,

10/15/25

Enin Kaduk, Lei Zhang2

10/15/25

Adopt the possibility to view and write "ɔ" letters for African languages

Please report this issue on the bug tracker: https://crbug.com/pdfium/new On Wed, Oct 15, 2025 at 9:

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Adopt the possibility to view and write "ɔ" letters for African languages

Please report this issue on the bug tracker: https://crbug.com/pdfium/new On Wed, Oct 15, 2025 at 9:

10/15/25

Kuka, … K. Moon4

9/12/25

Is XFA form filling supported now?

1. This would be a question for the Chromium project, not the PDFium project. 2. This is completely

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Is XFA form filling supported now?

1. This would be a question for the Chromium project, not the PDFium project. 2. This is completely

9/12/25

Something Something, geisserml8

9/9/25

Is it possible to encode an image of the same content as a pdf page when encoded with FPDF_RenderPageBitmap?

Hi, sorry for the late response, I've taken your advice and they really do wonders in improving

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Is it possible to encode an image of the same content as a pdf page when encoded with FPDF_RenderPageBitmap?

Hi, sorry for the late response, I've taken your advice and they really do wonders in improving

9/9/25

Loc Zhang (上杉夏香)

9/4/25

Why can't I delete the annotations in the pdf file.

Here is my logic: 1.I use FPDFPage_GetAnnotCount to get count annotations of an page 2.traversal

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Why can't I delete the annotations in the pdf file.

Here is my logic: 1.I use FPDFPage_GetAnnotCount to get count annotations of an page 2.traversal

9/4/25

Loc Zhang (上杉夏香), Lei Zhang2

9/4/25

FPDF_SaveAsCopy with SaveFlagIncremental but the annotation I added don't work

See crbug.com/42270523 and https://pdfium-review.googlesource.com/135350. On Mon, Aug 25, 2025 at 9:

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FPDF_SaveAsCopy with SaveFlagIncremental but the annotation I added don't work

See crbug.com/42270523 and https://pdfium-review.googlesource.com/135350. On Mon, Aug 25, 2025 at 9:

9/4/25

Loc Zhang (上杉夏香)

9/4/25

If I add annotations into pdf, should I must set AP(appearance streams)?

for example, I add Square annotation 1.create annotation 2.set rect 3.set color 4.save file but I

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If I add annotations into pdf, should I must set AP(appearance streams)?

for example, I add Square annotation 1.create annotation 2.set rect 3.set color 4.save file but I

9/4/25

吴吴, Lei Zhang3

9/3/25

Very serious memory leak

Thanks for reporting the issue. I believe this is https://crbug.com/42270200. On Tue, Sep 2, 2025 at

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Very serious memory leak

Thanks for reporting the issue. I believe this is https://crbug.com/42270200. On Tue, Sep 2, 2025 at

9/3/25

Bojan Lovrovic, geisserml3

8/23/25

> These are not mentioned in your list though, so I'm guessing you are setting

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> These are not mentioned in your list though, so I'm guessing you are setting

8/23/25

8/15/25

Does bblanchon.PDFium.Linux, bblanchon.PDFium.macOs and bblanchon.PDFium.Win32 NuGet packages work

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Does bblanchon.PDFium.Linux, bblanchon.PDFium.macOs and bblanchon.PDFium.Win32 NuGet packages work

8/15/25

8/13/25

why FPDFImageObj_GetBitmap return null?

why FPDFImageObj_GetBitmap return null? it is FPDF_PAGEOBJ_IMAGE,when i use FPDFPageObj_GetType. i

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why FPDFImageObj_GetBitmap return null?

why FPDFImageObj_GetBitmap return null? it is FPDF_PAGEOBJ_IMAGE,when i use FPDFPageObj_GetType. i

8/13/25

8/6/25

FPDFPage_GenerateContent

In PDF files with more than 1000 pages, calls to the FPDFPage_GenerateContent() API take too long.

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FPDFPage_GenerateContent

In PDF files with more than 1000 pages, calls to the FPDFPage_GenerateContent() API take too long.

8/6/25

尼古拉特斯拉

8/5/25

Re: Type the translation. FPDFImageobj _ GetImageDataDecoded cannot get the image data embedded in the form correctly.

At present, it is found that the obtained pixel data is still an image in jfif format, which is not

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Re: Type the translation. FPDFImageobj _ GetImageDataDecoded cannot get the image data embedded in the form correctly.

At present, it is found that the obtained pixel data is still an image in jfif format, which is not

8/5/25

吴吴, geisserml4

7/25/25

Drawing large PDF pages is slow, inefficient, and fails

I'm not sure I understand correctly, but it sounds to me as though you don't just want to

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Drawing large PDF pages is slow, inefficient, and fails

I'm not sure I understand correctly, but it sounds to me as though you don't just want to

7/25/25

Kuka, geisserml2

7/24/25

Why PDFium chose the Anti-Grain Geometry Render Engine

I believe PDFium is actually moving away from AGG towards Skia. Using AGG might have been a decision

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Why PDFium chose the Anti-Grain Geometry Render Engine

I believe PDFium is actually moving away from AGG towards Skia. Using AGG might have been a decision

7/24/25

吴吴, geisserml3

7/24/25

Pdfium draws very large pages

See https://groups.google.com/g/pdfium/c/y-Ioecf5E3c/m/cM4fIzPMAgAJ for an answer on the duplicate

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Pdfium draws very large pages

See https://groups.google.com/g/pdfium/c/y-Ioecf5E3c/m/cM4fIzPMAgAJ for an answer on the duplicate

7/24/25

7/18/25

Creating a paragraph with a single text object when line wraps are known?

I'm looking for some guidance regarding text rendering in Pdfium. Is it possible to render an

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Creating a paragraph with a single text object when line wraps are known?

I'm looking for some guidance regarding text rendering in Pdfium. Is it possible to render an

7/18/25

7/11/25

Can' use FPDFAnnot_SetAttachmentPoints, return could not set attachment points

I want to use go-pdfium to get an underline/highlight etc annotation. But I got an error: could not

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Can' use FPDFAnnot_SetAttachmentPoints, return could not set attachment points

I want to use go-pdfium to get an underline/highlight etc annotation. But I got an error: could not

7/11/25

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