diff -up texlive-base-20210325/source/texk/web2c/pdftexdir/pdftoepdf.cc.poppler-0.73 texlive-base-20210325/source/texk/web2c/pdftexdir/pdftoepdf.cc
--- texlive-base-20210325/source/texk/web2c/pdftexdir/pdftoepdf.cc.poppler-0.73	2021-05-06 18:01:35.847959461 -0400
+++ texlive-base-20210325/source/texk/web2c/pdftexdir/pdftoepdf.cc	2021-05-06 18:08:20.143955577 -0400
@@ -114,7 +114,7 @@ struct UsedEncoding {
 
 static InObj *inObjList;
 static UsedEncoding *encodingList;
-static GBool isInit = gFalse;
+static bool isInit = false;
 
 // --------------------------------------------------------------------
 // Maintain list of open embedded PDF files
@@ -269,7 +269,7 @@ static int getNewObjectNumber(Ref ref)
 
 static void copyObject(Object *);
 
-static void copyName(char *s)
+static void copyName(const char *s)
 {
     pdf_puts("/");
     for (; *s != 0; s++) {
@@ -304,7 +304,7 @@ static void copyDict(Object * obj)
 static void copyFontDict(Object * obj, InObj * r)
 {
     int i, l;
-    char *key;
+    const char *key;
     if (!obj->isDict())
         pdftex_fail("PDF inclusion: invalid dict type <%s>",
                     obj->getTypeName());
@@ -376,7 +376,7 @@ static bool embeddableFont(Object * font
     return false;
 }
 
-static void copyFont(char *tag, Object * fontRef)
+static void copyFont(const char *tag, Object * fontRef)
 {
     Object fontdict, subtype, basefont, fontdescRef, fontdesc, charset,
         stemV;
@@ -412,7 +412,7 @@ static void copyFont(char *tag, Object *
         && fontdescRef.isRef()
         && fontdesc.isDict()
         && embeddableFont(&fontdesc)
-        && (fontmap = lookup_fontmap(basefont.getName())) != NULL) {
+        && (fontmap = lookup_fontmap((char *)basefont.getName())) != NULL) {
         // round /StemV value, since the PDF input is a float
         // (see Font Descriptors in PDF reference), but we only store an
         // integer, since we don't want to change the struct.
@@ -421,7 +421,7 @@ static void copyFont(char *tag, Object *
         charset = fontdesc.dictLookup("CharSet");
         if (!charset.isNull() &&
             charset.isString() && is_subsetable(fontmap))
-            epdf_mark_glyphs(fd, charset.getString()->getCString());
+            epdf_mark_glyphs(fd, (char *)charset.getString()->c_str());
         else
             embed_whole_font(fd);
         addFontDesc(fontdescRef.getRef(), fd);
@@ -461,7 +461,7 @@ static void copyFontResources(Object * o
     pdf_puts(">>\n");
 }
 
-static void copyOtherResources(Object * obj, char *key)
+static void copyOtherResources(Object * obj, const char *key)
 {
     // copies all other resources (write_epdf handles Fonts and ProcSets),
 
@@ -548,8 +548,8 @@ static void copyObject(Object * obj)
     Object obj1;
     int i, l, c;
     Ref ref;
-    char *p;
-    GString *s;
+    const char *p;
+    const GString *s;
     if (obj->isBool()) {
         pdf_printf("%s", obj->getBool()? "true" : "false");
     } else if (obj->isInt()) {
@@ -560,7 +560,7 @@ static void copyObject(Object * obj)
         pdf_printf("%s", convertNumToPDF(obj->getNum()));
     } else if (obj->isString()) {
         s = obj->getString();
-        p = s->getCString();
+        p = s->c_str();
         l = s->getLength();
         if (strlen(p) == (unsigned int) l) {
             pdf_puts("(");
@@ -658,7 +658,7 @@ static void writeEncodings()
                     ("PDF inclusion: CID fonts are not supported"
                      " (try to disable font replacement to fix this)");
             }
-            if ((s = ((Gfx8BitFont *) r->font)->getCharName(i)) != 0)
+            if ((s = (char *) ((Gfx8BitFont *) r->font)->getCharName(i)) != 0)
                 glyphNames[i] = s;
             else
                 glyphNames[i] = notdef;
@@ -673,7 +673,7 @@ static void writeEncodings()
 }
 
 // get the pagebox according to the pagebox_spec
-static PDFRectangle *get_pagebox(Page * page, int pagebox_spec)
+static const PDFRectangle *get_pagebox(Page * page, int pagebox_spec)
 {
     if (pagebox_spec == pdfboxspecmedia)
         return page->getMediaBox();
@@ -705,13 +705,13 @@ read_pdf_info(char *image_name, char *pa
 {
     PdfDocument *pdf_doc;
     Page *page;
-    PDFRectangle *pagebox;
+    const PDFRectangle *pagebox;
     float pdf_version_found, pdf_version_wanted;
     // initialize
     if (!isInit) {
         globalParams = new GlobalParams();
-        globalParams->setErrQuiet(gFalse);
-        isInit = gTrue;
+        globalParams->setErrQuiet(false);
+        isInit = true;
     }
     // open PDF file
     pdf_doc = find_add_document(image_name);
@@ -803,7 +803,7 @@ void write_epdf(void)
     Object groupDict;
     bool writeSepGroup = false;
     Object info;
-    char *key;
+    const char *key;
     char s[256];
     int i, l;
     int rotate;
@@ -830,7 +830,7 @@ void write_epdf(void)
     pageObj = xref->fetch(pageRef->num, pageRef->gen);
     pageDict = pageObj.getDict();
     rotate = page->getRotate();
-    PDFRectangle *pagebox;
+    const PDFRectangle *pagebox;
     // write the Page header
     pdf_puts("/Type /XObject\n");
     pdf_puts("/Subtype /Form\n");
@@ -958,7 +958,7 @@ The changes below seem to work fine.
             }
             l = dic1.getLength();
             for (i = 0; i < l; i++) {
-                groupDict.dictAdd(copyString(dic1.getKey(i)),
+                groupDict.dictAdd(dic1.getKey(i),
                                   dic1.getValNF(i));
             }
 // end modification
diff -up texlive-base-20210325/source/texk/web2c/pdftexdir/pdftosrc.cc.poppler-0.73 texlive-base-20210325/source/texk/web2c/pdftexdir/pdftosrc.cc
--- texlive-base-20210325/source/texk/web2c/pdftexdir/pdftosrc.cc.poppler-0.73	2021-05-06 18:01:35.847959461 -0400
+++ texlive-base-20210325/source/texk/web2c/pdftexdir/pdftosrc.cc	2021-05-06 18:01:35.854959565 -0400
@@ -103,7 +103,7 @@ int main(int argc, char *argv[])
             fprintf(stderr, "No SourceName found\n");
             exit(1);
         }
-        outname = srcName.getString()->getCString();
+        outname = (char *)srcName.getString()->c_str();
         // We cannot free srcName, as objname shares its string.
         // srcName.free();
     } else if (objnum > 0) {
@@ -112,7 +112,7 @@ int main(int argc, char *argv[])
             fprintf(stderr, "Not a Stream object\n");
             exit(1);
         }
-        sprintf(buf, "%s", fileName->getCString());
+        sprintf(buf, "%s", fileName->c_str());
         if ((p = strrchr(buf, '.')) == 0)
             p = strchr(buf, 0);
         if (objgen == 0)
@@ -122,7 +122,7 @@ int main(int argc, char *argv[])
         outname = buf;
     } else {                    // objnum < 0 means we are extracting the XRef table
         extract_xref_table = true;
-        sprintf(buf, "%s", fileName->getCString());
+        sprintf(buf, "%s", fileName->c_str());
         if ((p = strrchr(buf, '.')) == 0)
             p = strchr(buf, 0);
         sprintf(p, ".xref");
@@ -155,7 +155,7 @@ int main(int argc, char *argv[])
                 Object objStr, obj1, obj2;
                 int nObjects, first, n;
                 int localOffset = 0;
-                Guint firstOffset;
+                unsigned int firstOffset;
 
                 objStr = xref->fetch(e->offset, 0);
                 assert(objStr.isStream());
@@ -167,9 +167,9 @@ int main(int argc, char *argv[])
 
                 // parse the header: object numbers and offsets
                 objStr.streamReset();
-                str = new EmbedStream(objStr.getStream(), Object(objNull), gTrue, first);
+                str = new EmbedStream(objStr.getStream(), Object(objNull), true, first);
                 lexer = new Lexer(xref, str);
-                parser = new Parser(xref, lexer, gFalse);
+                parser = new Parser(xref, lexer, false);
                 for (n = 0; n < nObjects; ++n) {
                     obj1 = parser->getObj();
                     obj2 = parser->getObj();
diff -up texlive-base-20210325/source/texk/web2c/xetexdir/pdfimage.cpp.poppler-0.73 texlive-base-20210325/source/texk/web2c/xetexdir/pdfimage.cpp